PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
SELECT ?owner ?ownerLabel WHERE {
  wd:Q243278 wdt:P127 ?owner .
  OPTIONAL {
    ?owner rdfs:label ?ownerLabel FILTER ( lang( ?ownerLabel ) = "en" )
  }
}

Got 3 rows and 2 columns:
| owner                                | ownerLabel                   |
| ------------------------------------ | ---------------------------- |
| ValueAct Capital (wd:Q22032185)      | ValueAct Capital (en)        |
| Credit Suisse (wd:Q372657)           | Credit Suisse (en)           |
| Capital Group Companies (wd:Q505275) | Capital Group Companies (en) |

According to Wikidata, the owners of Rolls-Royce Holdings plc (wd:Q243278) are:
- ValueAct Capital (wd:Q22032185)
- Credit Suisse (wd:Q372657)
- Capital Group Companies (wd:Q505275)

These are the entities listed as owners in Wikidata, but this list may not be exhaustive or up-to-date, as ownership of large public companies is often distributed among many shareholders.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
wikidata at https://qlever.cs.uni-freiburg.de/api/wikidata-sebastian

You can use the following SPARQL prefixes implicitly in all functions:
cc: <http://creativecommons.org/ns#
data: <https://www.wikidata.org/wiki/Special:EntityData/
dct: <http://purl.org/dc/terms/
geo: <http://www.opengis.net/ont/geosparql#
geof: <http://www.opengis.net/def/function/geosparql/
imdb: <https://www.imdb.com/
math: <http://www.w3.org/2005/xpath-functions/math#
ontolex: <http://www.w3.org/ns/lemon/ontolex#
owl: <http://www.w3.org/2002/07/owl#
p: <http://www.wikidata.org/prop/
pq: <http://www.wikidata.org/prop/qualifier/
pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/
pqv: <http://www.wikidata.org/prop/qualifier/value/
pr: <http://www.wikidata.org/prop/reference/
prn: <http://www.wikidata.org/prop/reference/value-normalized/
prov: <http://www.w3.org/ns/prov#
prv: <http://www.wikidata.org/prop/reference/value/
ps: <http://www.wikidata.org/prop/statement/
psn: <http://www.wikidata.org/prop/statement/value-normalized/
psv: <http://www.wikidata.org/prop/statement/value/
qfn: <http://qlever.cs.uni-freiburg.de/function#
ql: <http://qlever.cs.uni-freiburg.de/builtin-functions/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
ref: <http://www.wikidata.org/reference/
s: <http://www.wikidata.org/entity/statement/
schema: <http://schema.org/
skos: <http://www.w3.org/2004/02/skos/core#
v: <http://www.wikidata.org/value/
wd: <http://www.wikidata.org/entity/
wdno: <http://www.wikidata.org/prop/novalue/
wdt: <http://www.wikidata.org/prop/direct/
wdtn: <http://www.wikidata.org/prop/direct-normalized/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
dc: <http://purl.org/dc/elements/1.1/
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Who is the owner of Rolls-Royce?

[Assistant]
Let's break down the question:

1. We need to identify the entity "Rolls-Royce" in Wikidata.
2. We need to find the property that represents "owner" or "owned by".
3. We will then construct a SPARQL query to find the owner(s) of Rolls-Royce.

First, I'll search for the entity "Rolls-Royce" in Wikidata.

[Tool]
Top 10 entity alternatives:
1. Rolls-Royce, also known as Rolls-Royce Holdings plc (wd:Q243278): British multinational public holding company
2. Rolls-Royce (wd:Q125141709): car brand
3. Rolls-Royce, also known as Rolls-Royce plc (wd:Q85623218): British company
4. Rolls-Royce Limited, also known as Rolls Royce Limited (wd:Q679888): 1906-1987 automobile and aerospace manufacturer in the United Kingdom
5. Merlin, also known as Merlin engine, Rolls-Royce Merlin, RR Merlin (wd:Q1412885): 12-cylinder V piston engine family by Rolls-Royce
6. The Yellow Rolls-Royce, also known as Yellow Rolls-Royce (wd:Q2474758): 1964 film by Anthony Asquith
7. Rolls-Royce Ghost (wd:Q1510648): car model
8. Rolls-Royce Trent (wd:Q1738127): turbofan aircraft engine family
9. Rolls-Royce Griffon (wd:Q2164325): 1930s British piston aircraft engine
10. Rolls-Royce RB211, also known as RB211 (wd:Q1636078): 1960s British turbofan aircraft engine

[Assistant]
There are multiple entities related to "Rolls-Royce" in Wikidata. The most relevant for the question "Who is the owner of Rolls-Royce?" are:

- Rolls-Royce Holdings plc (wd:Q243278): The current British multinational public holding company.
- Rolls-Royce (wd:Q125141709): The car brand.
- Rolls-Royce plc (wd:Q85623218): Another company entity.
- Rolls-Royce Limited (wd:Q679888): The original company (1906-1987).

Since the question is general, I will focus on the primary current company, Rolls-Royce Holdings plc (wd:Q243278), as it is the main entity for "Rolls-Royce" today.

Next, I will search for the property representing "owner" or "owned by".

[Tool]
Top 10 property alternatives:
1. owned by, also known as belongs to, stockholders, stockholder, shareholders, shareholder (wd:P127 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): owner of the subject
2. owner of, also known as owns, owns property, shareholder of (wd:P1830 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): entities owned by the subject
3. has subsidiary, also known as subordinate body, subsidiary body, subordinate unit, subsidiary, subsidiary company (wd:P355 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): subsidiary of a company or organization; generally a fully owned...siness division" (P199). Opposite of parent organization (P749)., has part(s), owner of
4. copyright holder, also known as licensor, proprietor, copyright owner, copyright ‘owner’ (wd:P3931 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): person or organisation who holds the copyright of a work according to the Berne Convention, owned by
5. beneficial owner, also known as beneficial ownership, UBO (wd:P12621 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): natural person or persons who ultimately owns or controls a company or organisation
6. properties for this type, also known as uses properties, Wikidata properties for this type, Wikidata properties for this class, uses property, things one could say about (wd:P1963 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): when this subject is used as object of “instance of”, the following properties normally apply
7. Wikidata property, also known as main property, property for this item, property, has property (wd:P1687 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): main Wikidata property for this item
8. has characteristic, also known as has quality, inherent property, object has characteristic, parameter, quality (wd:P1552 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): inherent or distinguishing quality or feature of the entity. Use a more specific property when possible
9. afterward owned by, also known as subsequently owned by, purchased by, owned after by, new owner, bought by (wd:P11812 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): person or institution that owned the subject after stated event....ficant event (P793)" for events like sales, auctions, gifts, etc
10. leased to, also known as lessee (wd:P13047 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): person or organisation that holds or was granted a lease on the subject, occupant

[Assistant]
The most relevant property for "owner" is "owned by" (wdt:P127). This property links an entity to its owner(s).

Now, I will construct a SPARQL query to find the owner(s) of Rolls-Royce Holdings plc (wd:Q243278) using the "owned by" property (wdt:P127). I will also include optional labels for readability.

[Tool]
Got 3 rows and 2 columns:
| owner                                | ownerLabel                   |
| ------------------------------------ | ---------------------------- |
| ValueAct Capital (wd:Q22032185)      | ValueAct Capital (en)        |
| Credit Suisse (wd:Q372657)           | Credit Suisse (en)           |
| Capital Group Companies (wd:Q505275) | Capital Group Companies (en) |

[Tool] Stopped generation process

[User]
Feedback (status=refine):
The query correctly retrieves the direct owners (entities listed as 'owned by' on Wikidata) of Rolls-Royce Holdings plc. However, the answer could be improved by also retrieving the labels for the owners for better readability, using OPTIONAL clauses with rdfs:label. This would make the answer more informative and user-friendly. The current query only returns the IRIs, which is technically correct, but including labels is a common and helpful refinement. The rest of the query logic is sound and follows the rules.

[Assistant]
Thank you for the feedback! I agree that including the labels for the owners would make the answer more user-friendly. I will refine the SPARQL query to include optional English labels for each owner using OPTIONAL and rdfs:label.

Here is the improved query and answer.

[Tool] Stopped generation process

[User]
Feedback (status=refine):
The query correctly retrieves entities listed as owners of Rolls-Royce Holdings plc (wd:Q243278) using the 'owned by' (wdt:P127) property. However, ownership of large public companies like Rolls-Royce Holdings is often distributed among many institutional and individual shareholders, and Wikidata may not have a complete or up-to-date list. The answer should clarify that these are the owners listed in Wikidata, which may not be exhaustive or current. Additionally, it would be helpful to check if there are other relevant ownership-related properties (such as major shareholders or parent company) and consider including them if appropriate. The query itself is correct, but the answer should be contextualized for completeness.

[Assistant]
Thank you for the detailed feedback. You are correct: for large public companies like Rolls-Royce Holdings plc, ownership is often distributed among many shareholders, and Wikidata may only list notable or major owners, not a complete or current list. Additionally, properties like "major shareholder" or "parent company" might provide further relevant information.

To improve the answer:
1. I will clarify that the results are based on the owners listed in Wikidata, which may not be exhaustive or current.
2. I will check for other relevant ownership-related properties, such as "major shareholder" and "parent company," and include them if present.

First, I will search for ownership-related properties for Rolls-Royce Holdings plc.

[Tool]
Top 10 property alternatives:
1. owned by, also known as belongs to, stockholders, stockholder, shareholders, shareholder (wd:P127 as p/wdt): owner of the subject
2. owner of, also known as owns, owns property, shareholder of (wd:P1830 as p/wdt): entities owned by the subject
3. total equity, also known as equity, shareholder equity (wd:P2137 as p/wdt): amount of equity value for an entity
4. has subsidiary, also known as subordinate body, subsidiary body, subordinate unit, subsidiary, subsidiary company (wd:P355 as p/wdt): subsidiary of a company or organization; generally a fully owned...siness division" (P199). Opposite of parent organization (P749)., has part(s), owner of
5. board member, also known as member of the board, member of the board of directors (wd:P3320 as p/wdt): member(s) of the board for the organization
6. parent organization, also known as parent company, parent institution, parent organisation, parent unit, part of (wd:P749 as p): parent organization of an organization, opposite of subsidiaries (P355), owned by, part of
7. stock exchange, also known as listed on, listed on stock exchange, listed on exchange, exchange (wd:P414 as p/wdt): exchange on which this company is traded
8. founded by, also known as starter, co-founded by, started by, institutor, instituted by (wd:P112 as p/wdt): founder or co-founder of this organization, religion, place or entity, creator
9. chief executive officer, also known as executive director, CEO, chief executive (wd:P169 as p/wdt): highest-ranking corporate officer appointed as the CEO within an organization, director / manager, corporate officer
10. chairperson, also known as dean, headed by, leader, president, chairwoman (wd:P488 as p/wdt): presiding member of an organization, group or body, director / manager, significant person

No other items found

[Tool]
Top 10 property alternatives:
1. parent organization, also known as parent company, parent institution, parent organisation, parent unit, part of (wd:P749 as p): parent organization of an organization, opposite of subsidiaries (P355), owned by, part of
2. has subsidiary, also known as subordinate body, subsidiary body, subordinate unit, subsidiary, subsidiary company (wd:P355 as p/wdt): subsidiary of a company or organization; generally a fully owned...siness division" (P199). Opposite of parent organization (P749)., has part(s), owner of
3. owned by, also known as belongs to, stockholders, stockholder, shareholders, shareholder (wd:P127 as p/wdt): owner of the subject
4. owner of, also known as owns, owns property, shareholder of (wd:P1830 as p/wdt): entities owned by the subject
5. Companies House company ID, also known as UK company ID, UK company number, registered company number, company number, Companies House number (wd:P2622 as p/wdt): numeric identifier for company registered with Companies House in the United Kingdom
6. headquarters location, also known as headquarters locality, seat, headquarters town, HQ, HQ location (wd:P159 as p/wdt): city or town where an organization's headquarters is or has been situated. Use P276 qualifier for specific building, significant place
7. stock exchange, also known as listed on, listed on stock exchange, listed on exchange, exchange (wd:P414 as p/wdt): exchange on which this company is traded
8. founded by, also known as starter, co-founded by, started by, institutor, instituted by (wd:P112 as p/wdt): founder or co-founder of this organization, religion, place or entity, creator
9. board member, also known as member of the board, member of the board of directors (wd:P3320 as p/wdt): member(s) of the board for the organization
10. total equity, also known as equity, shareholder equity (wd:P2137 as p/wdt): amount of equity value for an entity

No other items found

[Tool] Got no rows and 2 columns

[Assistant]
Based on the property searches and query results:
- The only ownership-related property with values for Rolls-Royce Holdings plc (wd:Q243278) in Wikidata is "owned by" (wdt:P127).
- There are no entries for "parent organization" (wdt:P749) or other major shareholder properties.

Therefore, I will provide a refined answer that:
- Includes the owners listed in Wikidata with their labels.
- Clearly states that this information is based on Wikidata and may not be exhaustive or current, especially for a large public company.

Here is the improved SPARQL query and contextualized answer.

[Tool] Stopped generation process


PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
SELECT ?politician ?politicianLabel ?spouse ?spouseLabel WHERE {
  ?politician wdt:P106 wd:Q82955 ; wdt:P26 ?spouse .
  ?spouse wdt:P27 wd:Q183 .
  OPTIONAL {
    ?politician rdfs:label ?politicianLabel FILTER ( LANG( ?politicianLabel ) = "en" )
  }
  OPTIONAL {
    ?spouse rdfs:label ?spouseLabel FILTER ( LANG( ?spouseLabel ) = "en" )
  }
}

Got 740 rows and 4 columns, showing the first 5 and last 5 rows below:
| politician                            | politicianLabel            | spouse                                   | spouseLabel                     |
| ------------------------------------- | -------------------------- | ---------------------------------------- | ------------------------------- |
| Hans Georg Rupp (wd:Q108879)          | Hans Georg Rupp (en)       | Wiltraut Rupp-von Brünneck (wd:Q1000023) | Wiltraut Rupp-von Brünneck (en) |
| Hanns Martin Schleyer (wd:Q58758)     | Hanns Martin Schleyer (en) | Waltrude Schleyer (wd:Q100401)           | Waltrude Schleyer (en)          |
| Susanne Gaschke (wd:Q104875)          | Susanne Gaschke (en)       | Hans-Peter Bartels (wd:Q101192)          | Hans-Peter Bartels (en)         |
| Claudia Raffelhüschen (wd:Q108706759) | Claudia Raffelhüschen (en) | Bernd Raffelhüschen (wd:Q101261)         | Bernd Raffelhüschen (en)        |
| Kurt von Schleicher (wd:Q57133)       | Kurt von Schleicher (en)   | Elisabeth von Schleicher (wd:Q101292)    | Elisabeth von Schleicher (en)   |
| ...                                   | ...                        | ...                                      | ...                             |
| Horst Becker (wd:Q1629062)            | Horst Becker (en)          | Claudia Wieja (wd:Q99773196)             | Claudia Wieja (en)              |
| Oliver Helm (wd:Q1170657)             | Oliver Helm (en)           | Anne Helm (wd:Q99906)                    | Anne Helm (en)                  |
| Franz Jacob (wd:Q97587)               | Franz Jacob (en)           | Katharina Jacob (wd:Q99927)              | Katharina Jacob (en)            |
| Walter Hochmuth (wd:Q2544781)         | Walter Hochmuth (en)       | Katharina Jacob (wd:Q99927)              | Katharina Jacob (en)            |
| Karl Lauterbach (wd:Q105676)          | Karl Lauterbach (en)       | Angela Spelsberg (wd:Q99975451)          | Angela Spelsberg (en)           |

The query returns politicians whose spouse is a German citizen. For example: Hans Georg Rupp (spouse: Wiltraut Rupp-von Brünneck), Hanns Martin Schleyer (spouse: Waltrude Schleyer), Susanne Gaschke (spouse: Hans-Peter Bartels), Claudia Raffelhüschen (spouse: Bernd Raffelhüschen), and many more. The full list can be retrieved with the provided SPARQL query.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
wikidata at https://qlever.cs.uni-freiburg.de/api/wikidata-sebastian

You can use the following SPARQL prefixes implicitly in all functions:
cc: <http://creativecommons.org/ns#
data: <https://www.wikidata.org/wiki/Special:EntityData/
dct: <http://purl.org/dc/terms/
geo: <http://www.opengis.net/ont/geosparql#
geof: <http://www.opengis.net/def/function/geosparql/
imdb: <https://www.imdb.com/
math: <http://www.w3.org/2005/xpath-functions/math#
ontolex: <http://www.w3.org/ns/lemon/ontolex#
owl: <http://www.w3.org/2002/07/owl#
p: <http://www.wikidata.org/prop/
pq: <http://www.wikidata.org/prop/qualifier/
pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/
pqv: <http://www.wikidata.org/prop/qualifier/value/
pr: <http://www.wikidata.org/prop/reference/
prn: <http://www.wikidata.org/prop/reference/value-normalized/
prov: <http://www.w3.org/ns/prov#
prv: <http://www.wikidata.org/prop/reference/value/
ps: <http://www.wikidata.org/prop/statement/
psn: <http://www.wikidata.org/prop/statement/value-normalized/
psv: <http://www.wikidata.org/prop/statement/value/
qfn: <http://qlever.cs.uni-freiburg.de/function#
ql: <http://qlever.cs.uni-freiburg.de/builtin-functions/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
ref: <http://www.wikidata.org/reference/
s: <http://www.wikidata.org/entity/statement/
schema: <http://schema.org/
skos: <http://www.w3.org/2004/02/skos/core#
v: <http://www.wikidata.org/value/
wd: <http://www.wikidata.org/entity/
wdno: <http://www.wikidata.org/prop/novalue/
wdt: <http://www.wikidata.org/prop/direct/
wdtn: <http://www.wikidata.org/prop/direct-normalized/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
dc: <http://purl.org/dc/elements/1.1/
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Which politicians were married to a German?

[Assistant]
Let's break down the question:

1. We need to find entities that are politicians.
2. We need to find their spouses.
3. We need to check if the spouse is German (likely by nationality or citizenship).

First, let's identify:
- The entity for "politician".
- The property for "spouse".
- The property for "country of citizenship" or "nationality".
- The entity for "Germany".

I'll start by searching for the entity "politician".

[Tool]
Top 10 entity alternatives:
1. politician, also known as pol, political leader, polit., political figure (wd:Q82955): person who holds or seeks positions in government
2. Almudena Martínez del Junco, also known as politician, Spanish (wd:Q127427405): politician in Spain, politician
3. Politician (wd:Q104854338): 1985 novel by Piers Anthony
4. Politician, also known as Jeongchiinssa (wd:Q97217684): South Korea's radio channels
5. Rohit Pal, also known as politician (wd:Q4699959): public figure
6. Cecilia Achieng Ayot, also known as Politician (wd:Q115153599): Kenyan Politician Member of County Assembly Ward Laini Saba, politician
7. David Ruong'o Okelo, also known as Politician (wd:Q115153352): Kenyan Politician, politician
8. Ahmed Abdullahi, also known as Politician (wd:Q114862677): Kenyan Politician
9. Babacar J. Diop, also known as Politician (wd:Q121790292): Babacar J. Diop is current Special Adviser of Youth Policies and...19 to 2022, he served as National Youth Program Officer for UNDP, politician
10. antony kiragu karanja, also known as Politician (wd:Q115153332): Kenyan Politician Minority Leader, politician

[Assistant]
The main entity for "politician" is wd:Q82955.

Next, I will search for the property "spouse" to find the correct property to link politicians to their spouses.

[Tool]
Top 10 property alternatives:
1. spouse, also known as married partner, married to, marry, partner, spouses (wd:P26 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): the subject has the object as their spouse (husband, wife, partn...etc.). Use "unmarried partner" (P451) for non-married companions, significant person, relative
2. relative, also known as relatives, grandparent, relation, non-binary parent, niece (wd:P1038 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): family member (qualify with "kinship to subject", P1039; for direct family member please use specific property), significant person
3. unmarried partner, also known as romantic partner, partner of, partners, posslq, relationship (wd:P451 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): someone with whom the person is in a relationship without being married. Use "spouse" (P26) for married couples, significant person
4. married name, also known as full name (married) (wd:P2562 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): name or surname adopted by a person upon marriage, name
5. place of marriage, also known as marriage location, wedding location, wed at, married in, married at (wd:P2842 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): location where the marriage was celebrated. Use as qualifier for property "spouse" (P26), significant place
6. birth name, also known as née, name at birth, name before marriage, ne, né (wd:P1477 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): full name of a person at birth, if different from their current, generally used name, name
7. connects with, also known as contacts, couples with, intersects at grade, links to, mates with (wd:P2789 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): item with which the item is physically connected, physically interacts with
8. companion of, also known as has astronomical companion, has companion, companion, astronomic companion of, astronomic companion (wd:P399 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): two or more astronomic bodies of the same type relating to each other
9. end time, also known as ends, stop time, endtime, fall date, ineffective (wd:P582 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): moment when an entity ceases to exist and a statement stops being entirely valid or no longer be true, point in time
10. relation (wd:P2309 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): qualifier to define a property constraint in combination with P2...h the property "relative" is "type of kinship" (P1039), not this

[Assistant]
The property for "spouse" is wd:P26.

Now, I need to find the property for "country of citizenship" or "nationality" to check if the spouse is German. I'll search for "country of citizenship" first.

[Tool]
Top 10 property alternatives:
1. country of citizenship, also known as subject of (country), nation of citizenship, national of, nationality, nation (wd:P27 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): the object is a country that recognizes the subject as its citizen, country
2. place of birth, also known as POB, location of birth, location born, born in, birthplace (wd:P19 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): most specific known birth location of a person, animal or fictional character, location
3. date of birth, also known as year of birth, birthdate, DOB, born on, born (wd:P569 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): date on which the subject was born, inception
4. country for sport, also known as sports nationality, sports country, sport nationality, sporting nationality, sport country (wd:P1532 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): country a person or a team represents when playing a sport, country
5. valid in place, also known as applies to country, applies to location, applies to place, country, true in (wd:P3005 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): place where a statement is valid, applies to part
6. country of origin, also known as origin country, place of origin, originates from, country, CoO (wd:P495 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): country of origin of this item (creative work, food, phrase, product, etc.), significant place, country
7. country, also known as sovereign state, state, land, host country (wd:P17 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): sovereign state that this item is in (not to be used for human beings), located in the administrative territorial entity
8. birth name, also known as née, name at birth, name before marriage, ne, né (wd:P1477 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): full name of a person at birth, if different from their current, generally used name, name
9. permanent resident of, also known as landed immigrant of, PR (wd:P5389 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): country or region where a person has the legal status of permanent resident
10. residence, also known as living in, place of residence, resided at, resided in, resident in (wd:P551 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): the place where the person is or has been, resident, location

[Assistant]
The property for "country of citizenship" is wd:P27.

Now, I need to find the entity for "Germany" to use as the value for the spouse's citizenship. I'll search for "Germany".

[Tool]
Top 10 entity alternatives:
1. Germany, also known as BR Deutschland, Bundesrepublik Deutschland, Deutschland, Federal Republic of Germany (wd:Q183): country in Central Europe
2. Weimar Republic, also known as German Republic, Weimar Germany, Republic of Germany, Germany, German Reich (wd:Q41304): Germany in the years 1918/1919–1933
3. German Reich, also known as Deutsches Reich, German Empire, German Realm, Germany, Imperial Germany (wd:Q1206012): official name for the German nation state from 1871 to 1945, and name of Germany until 1949
4. Burg Drachenfels, also known as Germany (wd:Q1011486): castle
5. Germany (wd:Q5552078): European Parliament constituency
6. Geilenkirchen-Heinsberg, also known as Germany (wd:Q2268218)
7. Germany, also known as Germany, IN, Germany, Indiana (wd:Q18151573): unincorporated community in Clark County, Indiana
8. Germany (wd:Q19147844): poem by Vladimir Mayakovsky
9. Germany, also known as Ludwig, West (wd:Q3839160): Hetalia character
10. Germany, also known as Germany, Texas, Germany, TX (wd:Q15221573): unincorporated community in Houston County, Texas, United States

[Assistant]
The main entity for "Germany" is wd:Q183.

Now, I have all the necessary components:
- Politician: wd:Q82955
- Spouse: wdt:P26
- Country of citizenship: wdt:P27
- Germany: wd:Q183

Next, I will construct a SPARQL query to find all politicians (wd:Q82955) whose spouse (wdt:P26) has country of citizenship (wdt:P27) Germany (wd:Q183). I will also include optional labels for readability.

Here's the initial query draft:
```
SELECT ?politician ?politicianLabel ?spouse ?spouseLabel WHERE {
  ?politician wdt:P106 wd:Q82955;
              wdt:P26 ?spouse.
  ?spouse wdt:P27 wd:Q183.
  OPTIONAL { ?politician rdfs:label ?politicianLabel FILTER (LANG(?politicianLabel) = "en") }
  OPTIONAL { ?spouse rdfs:label ?spouseLabel FILTER (LANG(?spouseLabel) = "en") }
}
```
I'll execute this query to check the results.

[Tool]
Got 740 rows and 4 columns, showing the first 5 and last 5 rows below:
| politician                            | politicianLabel            | spouse                                   | spouseLabel                     |
| ------------------------------------- | -------------------------- | ---------------------------------------- | ------------------------------- |
| Hans Georg Rupp (wd:Q108879)          | Hans Georg Rupp (en)       | Wiltraut Rupp-von Brünneck (wd:Q1000023) | Wiltraut Rupp-von Brünneck (en) |
| Hanns Martin Schleyer (wd:Q58758)     | Hanns Martin Schleyer (en) | Waltrude Schleyer (wd:Q100401)           | Waltrude Schleyer (en)          |
| Susanne Gaschke (wd:Q104875)          | Susanne Gaschke (en)       | Hans-Peter Bartels (wd:Q101192)          | Hans-Peter Bartels (en)         |
| Claudia Raffelhüschen (wd:Q108706759) | Claudia Raffelhüschen (en) | Bernd Raffelhüschen (wd:Q101261)         | Bernd Raffelhüschen (en)        |
| Kurt von Schleicher (wd:Q57133)       | Kurt von Schleicher (en)   | Elisabeth von Schleicher (wd:Q101292)    | Elisabeth von Schleicher (en)   |
| ...                                   | ...                        | ...                                      | ...                             |
| Horst Becker (wd:Q1629062)            | Horst Becker (en)          | Claudia Wieja (wd:Q99773196)             | Claudia Wieja (en)              |
| Oliver Helm (wd:Q1170657)             | Oliver Helm (en)           | Anne Helm (wd:Q99906)                    | Anne Helm (en)                  |
| Franz Jacob (wd:Q97587)               | Franz Jacob (en)           | Katharina Jacob (wd:Q99927)              | Katharina Jacob (en)            |
| Walter Hochmuth (wd:Q2544781)         | Walter Hochmuth (en)       | Katharina Jacob (wd:Q99927)              | Katharina Jacob (en)            |
| Karl Lauterbach (wd:Q105676)          | Karl Lauterbach (en)       | Angela Spelsberg (wd:Q99975451)          | Angela Spelsberg (en)           |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query correctly retrieves politicians (using occupation wd:Q82955) whose spouse (wdt:P26) is a German citizen (wdt:P27 wd:Q183). The query returns the IRIs for both the politician and spouse, and includes optional English labels. The answer and sample results are accurate and relevant to the question. No further refinement is needed.


PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
SELECT ?start ?end WHERE {
  wd:Q33132 wdt:P580 ?start .
  OPTIONAL {
    wd:Q33132 wdt:P582 ?end
  }
}

The Battle of Gettysburg took place from July 1, 1863 to July 3, 1863.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
wikidata at https://qlever.cs.uni-freiburg.de/api/wikidata-sebastian

You can use the following SPARQL prefixes implicitly in all functions:
cc: <http://creativecommons.org/ns#
data: <https://www.wikidata.org/wiki/Special:EntityData/
dct: <http://purl.org/dc/terms/
geo: <http://www.opengis.net/ont/geosparql#
geof: <http://www.opengis.net/def/function/geosparql/
imdb: <https://www.imdb.com/
math: <http://www.w3.org/2005/xpath-functions/math#
ontolex: <http://www.w3.org/ns/lemon/ontolex#
owl: <http://www.w3.org/2002/07/owl#
p: <http://www.wikidata.org/prop/
pq: <http://www.wikidata.org/prop/qualifier/
pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/
pqv: <http://www.wikidata.org/prop/qualifier/value/
pr: <http://www.wikidata.org/prop/reference/
prn: <http://www.wikidata.org/prop/reference/value-normalized/
prov: <http://www.w3.org/ns/prov#
prv: <http://www.wikidata.org/prop/reference/value/
ps: <http://www.wikidata.org/prop/statement/
psn: <http://www.wikidata.org/prop/statement/value-normalized/
psv: <http://www.wikidata.org/prop/statement/value/
qfn: <http://qlever.cs.uni-freiburg.de/function#
ql: <http://qlever.cs.uni-freiburg.de/builtin-functions/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
ref: <http://www.wikidata.org/reference/
s: <http://www.wikidata.org/entity/statement/
schema: <http://schema.org/
skos: <http://www.w3.org/2004/02/skos/core#
v: <http://www.wikidata.org/value/
wd: <http://www.wikidata.org/entity/
wdno: <http://www.wikidata.org/prop/novalue/
wdt: <http://www.wikidata.org/prop/direct/
wdtn: <http://www.wikidata.org/prop/direct-normalized/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
dc: <http://purl.org/dc/elements/1.1/
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] When was the Battle of Gettysburg?

[Assistant]
Let's break down the question:

1. The entity is "Battle of Gettysburg".
2. The property we are looking for is the date or time when the battle occurred.

First, I will search for the entity "Battle of Gettysburg" in Wikidata to get its identifier.

[Tool]
Top 10 entity alternatives:
1. Battle of Gettysburg (wd:Q33132): 1863 battle of the American Civil War
2. The Battle of Gettysburg, also known as Battle of Gettysburg (wd:Q3985807): 1913 film by Charles Giblyn, Thomas H. Ince
3. The Battle of Gettysburg, also known as Battle of Gettysburg (wd:Q7715862): 1955 documentary film by Herman Hoffman
4. Battle of Gettysburg order of battle (wd:Q124022501)
5. The battle of Gettysburg (wd:Q74684783): scientific article published on 01 August 1990
6. Gettysburg Confederate order of battle (wd:Q904364): 1863 American order of battle
7. Gettysburg Union order of battle (wd:Q840730)
8. Battle of Gettysburg, First Day (wd:Q841268): first day of the Battle of Gettysburg during the American Civil War
9. Battle of Gettysburg, Second Day (wd:Q905574): battle of the American Civil War
10. Battle of Gettysburg half dollar (wd:Q28104126): Background

[Assistant]
The most relevant entity for the historical event is "Battle of Gettysburg" (wd:Q33132).

Next, I need to find the property that indicates the date or time an event took place. Common properties for this are "point in time" or "start time". I will search for properties related to "date" or "time" to confirm the best one to use.

[Tool]
Top 10 property alternatives:
1. start time, also known as start date, since, valid, join time, joined (wd:P580 as p/wdt): time an entity begins to exist or a statement starts being valid, point in time
2. end time, also known as ends, stop time, endtime, fall date, ineffective (wd:P582 as p/wdt): moment when an entity ceases to exist and a statement stops being entirely valid or no longer be true, point in time
3. location, also known as neighbourhood, whereabouts, vilage, venue, town (wd:P276 as p/wdt): location of the object, structure or event. In the case of an ad...ity use P706. Use P7153 for locations associated with the object
4. instance of, also known as unitary element of class, has type, unique individual of, type, item of type (wd:P31 as p/wdt): that class of which this subject is a particular example and mem...is a subclass of mountain (and an instance of volcanic landform)
5. GND ID, also known as Deutschen Nationalbibliothek ID, Universal Authority File, Integrated Authority File, IndividualisedGnd, GND-IDN (wd:P227 as wdtn/p/wdt): identifier from an international authority file of names, subjects, and organizations
6. participant, also known as suspect, player, party, participants, has participant (wd:P710 as p/wdt): person, group of people or organization (object) that actively t...ct has role" (P3831). Use P1923 for participants that are teams., significant person
7. described by source, also known as mentioned in, source of item, reviewed in, mentioned in news article, talked about in (wd:P1343 as p/wdt): work where this item is described, attested in
8. country, also known as sovereign state, state, land, host country (wd:P17 as p/wdt): sovereign state that this item is in (not to be used for human beings), located in the administrative territorial entity
9. image, also known as still capture, still, screenshot, screen capture, portrait (wd:P18 as p/wdt): image of relevant illustration of the subject; if available, als...tor map, flag image, signature image, logo image, collage image)
10. coordinate location, also known as point on a map, gps coordinates, gps location, latitude, location (wd:P625 as p/wdt): geocoordinates of the subject. For Earth, please note that only WGS84 coordinating system is supported at the moment

No other items found

[Tool]
Top 10 property alternatives:
1. start time, also known as start date, since, valid, join time, joined (wd:P580 as p/wdt): time an entity begins to exist or a statement starts being valid, point in time
2. end time, also known as ends, stop time, endtime, fall date, ineffective (wd:P582 as p/wdt): moment when an entity ceases to exist and a statement stops being entirely valid or no longer be true, point in time
3. location, also known as neighbourhood, whereabouts, vilage, venue, town (wd:P276 as p/wdt): location of the object, structure or event. In the case of an ad...ity use P706. Use P7153 for locations associated with the object
4. coordinate location, also known as point on a map, gps coordinates, gps location, latitude, location (wd:P625 as p/wdt): geocoordinates of the subject. For Earth, please note that only WGS84 coordinating system is supported at the moment
5. country, also known as sovereign state, state, land, host country (wd:P17 as p/wdt): sovereign state that this item is in (not to be used for human beings), located in the administrative territorial entity
6. described by source, also known as mentioned in, source of item, reviewed in, mentioned in news article, talked about in (wd:P1343 as p/wdt): work where this item is described, attested in
7. participant, also known as suspect, player, party, participants, has participant (wd:P710 as p/wdt): person, group of people or organization (object) that actively t...ct has role" (P3831). Use P1923 for participants that are teams., significant person
8. image, also known as still capture, still, screenshot, screen capture, portrait (wd:P18 as p/wdt): image of relevant illustration of the subject; if available, als...tor map, flag image, signature image, logo image, collage image)
9. topic's main category, also known as article's main category, category, category for this topic, catmain, has category (wd:P910 as p/wdt): main Wikimedia category
10. Freebase ID, also known as Freebase, MID, Freebase identifier, FID (wd:P646 as p/wdt): identifier for a page in the Freebase database. Format: "/m/0" f...r IDs starting with "/g/", use Google Knowledge Graph ID (P2671)

No other items found

[Tool]
Got 1 row and 2 columns:
| start                               | end                                 |
| ----------------------------------- | ----------------------------------- |
| 1863-07-01T00:00:00Z (xsd:dateTime) | 1863-07-03T00:00:00Z (xsd:dateTime) |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query correctly retrieves the start and end dates of the Battle of Gettysburg using the appropriate Wikidata entity (wd:Q33132) and properties (wdt:P580 for start time and wdt:P582 for end time). The answer provided matches the query result, and the query returns the actual IRIs (dateTime values) as required. No further refinement is necessary.


PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
SELECT ?work ?workLabel WHERE {
  ?work wdt:P50 wd:Q72653 .
  ?work wdt:P31 ?type .
  VALUES ?type {
    wd:Q571 wd:Q7725634
  }
  OPTIONAL {
    ?work rdfs:label ?workLabel FILTER ( lang( ?workLabel ) = "en" )
  }
}

Got 139 rows and 2 columns, showing the first 5 and last 5 rows below:
| work                                   | workLabel                   |
| -------------------------------------- | --------------------------- |
| wd:Q100257629                          |                             |
| Jewels (wd:Q10306884)                  | Jewels (en)                 |
| The Promise (wd:Q10381720)             | The Promise (en)            |
| The Sins of the Mother (wd:Q107074924) | The Sins of the Mother (en) |
| First Sight (wd:Q107074970)            | First Sight (en)            |
| ...                                    | ...                         |
| The Wedding (wd:Q7774042)              | The Wedding (en)            |
| Thurston House (wd:Q7799449)           | Thurston House (en)         |
| Toxic Bachelors (wd:Q7830354)          | Toxic Bachelors (en)        |
| Wanderlust (wd:Q7967238)               | Wanderlust (en)             |
| Sunset in St. Tropez (wd:Q951140)      | Sunset in St. Tropez (en)   |

All books and literary works written by Danielle Steel are retrieved by this query. The results include works such as 'Jewels', 'The Promise', 'The Sins of the Mother', 'First Sight', 'The Wedding', 'Thurston House', 'Toxic Bachelors', 'Wanderlust', and 'Sunset in St. Tropez', among others.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
wikidata at https://qlever.cs.uni-freiburg.de/api/wikidata-sebastian

You can use the following SPARQL prefixes implicitly in all functions:
cc: <http://creativecommons.org/ns#
data: <https://www.wikidata.org/wiki/Special:EntityData/
dct: <http://purl.org/dc/terms/
geo: <http://www.opengis.net/ont/geosparql#
geof: <http://www.opengis.net/def/function/geosparql/
imdb: <https://www.imdb.com/
math: <http://www.w3.org/2005/xpath-functions/math#
ontolex: <http://www.w3.org/ns/lemon/ontolex#
owl: <http://www.w3.org/2002/07/owl#
p: <http://www.wikidata.org/prop/
pq: <http://www.wikidata.org/prop/qualifier/
pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/
pqv: <http://www.wikidata.org/prop/qualifier/value/
pr: <http://www.wikidata.org/prop/reference/
prn: <http://www.wikidata.org/prop/reference/value-normalized/
prov: <http://www.w3.org/ns/prov#
prv: <http://www.wikidata.org/prop/reference/value/
ps: <http://www.wikidata.org/prop/statement/
psn: <http://www.wikidata.org/prop/statement/value-normalized/
psv: <http://www.wikidata.org/prop/statement/value/
qfn: <http://qlever.cs.uni-freiburg.de/function#
ql: <http://qlever.cs.uni-freiburg.de/builtin-functions/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
ref: <http://www.wikidata.org/reference/
s: <http://www.wikidata.org/entity/statement/
schema: <http://schema.org/
skos: <http://www.w3.org/2004/02/skos/core#
v: <http://www.wikidata.org/value/
wd: <http://www.wikidata.org/entity/
wdno: <http://www.wikidata.org/prop/novalue/
wdt: <http://www.wikidata.org/prop/direct/
wdtn: <http://www.wikidata.org/prop/direct-normalized/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
dc: <http://purl.org/dc/elements/1.1/
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Give me all books written by Danielle Steel.

[Assistant]
Let's break down the question:

1. The user wants all books written by Danielle Steel.
2. We need to identify the entity for "Danielle Steel" and the property for "author" or "written by".
3. We also need to ensure we are retrieving items that are books.

First, I'll search for the entity "Danielle Steel" in Wikidata.

[Tool]
Top 10 entity alternatives:
1. Danielle Steel, also known as Danielle Fernandes Dominique Schülein-Steel, Danielle Fernandes Dominique Schuelein-Steel (wd:Q72653): children's writer, American writer, novelist, writer
2. Danielle Steel's Star, also known as Star (wd:Q4189382): 1993 film directed by Michael Miller
3. Changes, also known as Danielle Steel's Changes (wd:Q4994471): 1991 television film directed by Charles Jarrott
4. Secrets, also known as Danielle Steel's Secrets (wd:Q2264138): 1992 American television film by Peter H. Hunt
5. Daddy, also known as Danielle Steel's Daddy (wd:Q5207983): 1991 television film
6. Kaleidoscope, also known as Danielle Steel's Kaleidoscope (wd:Q6351961): 1990 film directed by Jud Taylor
7. Danielle Steel's 'Palomino' (wd:Q5219445): 1991 television film
8. Mixed Blessings, also known as Danielle Steel's Mixed Blessings (wd:Q6883881): 1995 American television film directed by Bethany Rooney
9. Danielle Steel's A Perfect Stranger (wd:Q5219446): 1994 TV-film by Michael Miller
10. Message from Nam, also known as Danielle Steel's 'Message from Nam' (wd:Q3492381): 1993 television film

[Assistant]
The correct entity for Danielle Steel, the author, is wd:Q72653.

Next, I need to find the property that links an author to their books. I will search for properties related to "author" in Wikidata.

[Tool]
Top 10 property alternatives:
1. theorized by, also known as author, supported by, suggested by, proposer, proposed by (wd:P8403 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): subject who suggested or proposed this concept or immaterial invention
2. lyricist, also known as text poet, writer (of song lyrics), words by, text writer, text by (wd:P676 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): author of song lyrics, author
3. author, also known as writer, written by, poet, playwright, maker (wd:P50 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): main creator(s) of a written work (use on works, not humans); us...hor name string) when Wikidata item is unknown or does not exist, creator
4. notable work, also known as artwork, wrote, writer of, works, work (wd:P800 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): notable scientific, artistic or literary work, or other work of significance among subject's works
5. author given names, also known as given name, given names, first name, author first names, author first name (wd:P9687 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): qualifier for string representation of given or secondary sortin...presented in a bibliographic reference file (for example BibTeX), given name
6. used by, also known as armiger, user, played by, of (wd:P1535 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): item or concept that makes use of the subject (use sub-properties when appropriate)
7. operator, also known as offered by, operated by, provided by, run by, service operator (wd:P137 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): person, profession, organization or entity that operates the equipment, facility, or service, used by
8. creator, also known as created by, visual artist, sculptor, sculpted by, realized by (wd:P170 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): maker of this creative work or other object (where no more specific property exists)
9. author last names, also known as author last name, surnames, surname, last names, last name (wd:P9688 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): qualifier to provide string representation of family or primary ...presented in a bibliographic reference file (for example BibTeX), family name
10. object named as, also known as original wording, place name string, printed as, reference wording, [sic] (wd:P1932 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): use as qualifier to indicate how the object's value was given in the source, name

[Assistant]
The most relevant property for linking a written work to its author is "author" (wd:P50).

Now, to ensure we only get books, I need to check for the class or type "book". I will search for the entity representing "book" in Wikidata.

[Tool]
Top 10 entity alternatives:
1. book, also known as books (wd:Q571): medium for recording information (words or images) typically on bound pages or more abstractly in electronic or audio form
2. book (wd:Q997698): common figure in heraldry, used as a symbol of scholarship
3. book graph, also known as book (wd:Q4942925): one of two types of graph: quadrilateral books and square books
4. Kasidet Plookphol, also known as Book (wd:Q110897550): television actor, Thai actor, actor
5. Book (wd:Q5851422): village in Iran
6. Book (wd:Q16860229): family name
7. Book (wd:Q106838557): 2021 studio album by They Might Be Giants
8. .book (wd:Q24033188): top-level domain
9. Book Book, also known as Book Book, New South Wales, Book Book, New South Wales, Australia (wd:Q4942928): suburb of Wagga Wagga, New South Wales, Australia
10. Book, also known as Book, LA, Book, Louisiana (wd:Q17986011): human settlement in United States of America

[Assistant]
The correct entity for "book" as a medium is wd:Q571.

Now, I will construct a SPARQL query to find all items that are instances of "book" (wd:Q571) and have Danielle Steel (wd:Q72653) as their author (wd:P50). I will also optionally retrieve their labels for easier interpretation.

[Tool] Got no rows and 2 columns

[Assistant]
It appears that the query returned no results. This could be due to how books by Danielle Steel are modeled in Wikidata—perhaps not all of her books are explicitly typed as "book" (wd:Q571), or the author property is not consistently used.

To investigate further, I will relax the query by removing the explicit "instance of book" constraint and just look for any item with Danielle Steel as author. This will help determine if her works are present but not typed as "book".

[Tool]
Got 231 rows and 2 columns, showing the first 5 and last 5 rows below:
| work                                   | workLabel                   |
| -------------------------------------- | --------------------------- |
| wd:Q100257629                          |                             |
| Jewels (wd:Q10306884)                  | Jewels (en)                 |
| The Promise (wd:Q10381720)             | The Promise (en)            |
| The Sins of the Mother (wd:Q107074924) | The Sins of the Mother (en) |
| First Sight (wd:Q107074970)            | First Sight (en)            |
| ...                                    | ...                         |
| The Wedding (wd:Q7774042)              | The Wedding (en)            |
| Thurston House (wd:Q7799449)           | Thurston House (en)         |
| Toxic Bachelors (wd:Q7830354)          | Toxic Bachelors (en)        |
| Wanderlust (wd:Q7967238)               | Wanderlust (en)             |
| Sunset in St. Tropez (wd:Q951140)      | Sunset in St. Tropez (en)   |

[Tool]
Got 91 rows and 3 columns, showing the first 10 rows below:
| subject               | property                            | object                              |
| --------------------- | ----------------------------------- | ----------------------------------- |
| Jewels (wd:Q10306884) | instance of (wdt:P31)               | literary work (wd:Q7725634)         |
| Jewels (wd:Q10306884) | title (wdt:P1476)                   | Jewels (en)                         |
| Jewels (wd:Q10306884) | publication date (wdt:P577)         | 1992-01-01T00:00:00Z (xsd:dateTime) |
| Jewels (wd:Q10306884) | author (wdt:P50)                    | Danielle Steel (wd:Q72653)          |
| Jewels (wd:Q10306884) | main subject (wdt:P921)             | World War II (wd:Q362)              |
| Jewels (wd:Q10306884) | language of work or name (wdt:P407) | English (wd:Q1860)                  |
| Jewels (wd:Q10306884) | number of pages (wdt:P1104)         | 496 (xsd:decimal)                   |
| Jewels (wd:Q10306884) | country of origin (wdt:P495)        | United States (wd:Q30)              |
| Jewels (wd:Q10306884) | genre (wdt:P136)                    | historical fiction (wd:Q1196408)    |
| Jewels (wd:Q10306884) | follows (wdt:P155)                  | No Greater Love (wd:Q7044257)       |
| ...                   | ...                                 | ...                                 |

[Assistant]
From the inspection, works authored by Danielle Steel are often typed as "literary work" (wd:Q7725634) rather than strictly as "book" (wd:Q571). To better match the user's intent, I should include both "book" and "literary work" as possible types.

I'll now construct a query that retrieves all works authored by Danielle Steel that are either "book" (wd:Q571) or "literary work" (wd:Q7725634), and optionally their labels.

[Tool]
Got 139 rows and 2 columns, showing the first 5 and last 5 rows below:
| work                                   | workLabel                   |
| -------------------------------------- | --------------------------- |
| wd:Q100257629                          |                             |
| Jewels (wd:Q10306884)                  | Jewels (en)                 |
| The Promise (wd:Q10381720)             | The Promise (en)            |
| The Sins of the Mother (wd:Q107074924) | The Sins of the Mother (en) |
| First Sight (wd:Q107074970)            | First Sight (en)            |
| ...                                    | ...                         |
| The Wedding (wd:Q7774042)              | The Wedding (en)            |
| Thurston House (wd:Q7799449)           | Thurston House (en)         |
| Toxic Bachelors (wd:Q7830354)          | Toxic Bachelors (en)        |
| Wanderlust (wd:Q7967238)               | Wanderlust (en)             |
| Sunset in St. Tropez (wd:Q951140)      | Sunset in St. Tropez (en)   |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query correctly retrieves all works authored by Danielle Steel that are instances of either 'book' (wd:Q571) or 'literary work' (wd:Q7725634). It returns the IRIs of the works and, optionally, their English labels. The answer is accurate and complete according to the user's request. No further refinement is needed.


PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
SELECT ?daughter ?spouse WHERE {
  VALUES ?daughter {
    wd:Q273833 wd:Q467861 wd:Q467912 wd:Q5178632
  }
  OPTIONAL {
    ?daughter wdt:P26 ?spouse
  }
}

Got 5 rows and 2 columns:
| daughter                               | spouse                             |
| -------------------------------------- | ---------------------------------- |
| Rory Kennedy (wd:Q273833)              | Mark Bailey (wd:Q29938796)         |
| Kathleen Kennedy Townsend (wd:Q467861) | David Lee Townsend (wd:Q75326812)  |
| Kerry Kennedy (wd:Q467912)             | Andrew Cuomo (wd:Q11673)           |
| Courtney Kennedy Hill (wd:Q5178632)    | Paul Hill (wd:Q15133215)           |
| Courtney Kennedy Hill (wd:Q5178632)    | Jeffrey Robert Ruhe (wd:Q75326831) |

Robert F. Kennedy's daughters and their spouses are:
- Rory Kennedy is married to Mark Bailey
- Kathleen Kennedy Townsend is married to David Lee Townsend
- Kerry Kennedy was married to Andrew Cuomo
- Courtney Kennedy Hill was married to Paul Hill and Jeffrey Robert Ruhe

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
wikidata at https://qlever.cs.uni-freiburg.de/api/wikidata-sebastian

You can use the following SPARQL prefixes implicitly in all functions:
cc: <http://creativecommons.org/ns#
data: <https://www.wikidata.org/wiki/Special:EntityData/
dct: <http://purl.org/dc/terms/
geo: <http://www.opengis.net/ont/geosparql#
geof: <http://www.opengis.net/def/function/geosparql/
imdb: <https://www.imdb.com/
math: <http://www.w3.org/2005/xpath-functions/math#
ontolex: <http://www.w3.org/ns/lemon/ontolex#
owl: <http://www.w3.org/2002/07/owl#
p: <http://www.wikidata.org/prop/
pq: <http://www.wikidata.org/prop/qualifier/
pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/
pqv: <http://www.wikidata.org/prop/qualifier/value/
pr: <http://www.wikidata.org/prop/reference/
prn: <http://www.wikidata.org/prop/reference/value-normalized/
prov: <http://www.w3.org/ns/prov#
prv: <http://www.wikidata.org/prop/reference/value/
ps: <http://www.wikidata.org/prop/statement/
psn: <http://www.wikidata.org/prop/statement/value-normalized/
psv: <http://www.wikidata.org/prop/statement/value/
qfn: <http://qlever.cs.uni-freiburg.de/function#
ql: <http://qlever.cs.uni-freiburg.de/builtin-functions/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
ref: <http://www.wikidata.org/reference/
s: <http://www.wikidata.org/entity/statement/
schema: <http://schema.org/
skos: <http://www.w3.org/2004/02/skos/core#
v: <http://www.wikidata.org/value/
wd: <http://www.wikidata.org/entity/
wdno: <http://www.wikidata.org/prop/novalue/
wdt: <http://www.wikidata.org/prop/direct/
wdtn: <http://www.wikidata.org/prop/direct-normalized/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
dc: <http://purl.org/dc/elements/1.1/
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Who is the daughter of Robert Kennedy married to?

[Assistant]
Let's break down the question:

1. We need to identify Robert Kennedy in Wikidata.
2. Then, find his daughter(s).
3. For each daughter, find their spouse(s).

Let's start by searching for "Robert Kennedy" in Wikidata to get the correct entity.

[Tool]
Top 10 entity alternatives:
1. Robert F. Kennedy, also known as Robert Kennedy, Robert Francis Kennedy, RFK, Bobby Kennedy (wd:Q25310): United States politician, military officer, politician, lawyer, writer
2. Robert Kennedy, also known as Robert L. Kennnedy (wd:Q59010): Irish field hockey player (1880–1963), field hockey player
3. Bobby Kennedy, also known as Robert Kennedy (wd:Q4935237): Scottish footballer and manager, association football manager, association football player
4. Robert Kennedy, also known as Robert John Kennedy (wd:Q7346314): New Zealand cricketer, cricketer
5. Robert P. Kennedy, also known as Robert Kennedy, Robert Patterson Kennedy (wd:Q7348217): Union Army officer (1840–1918), military officer, politician, lawyer
6. Robert Kennedy (wd:Q7346315): Canadian publisher (1938–2012), publisher
7. Robert B. Kennedy, also known as R. B. Kennedy, Robert Kennedy (wd:Q16105383): American politician, politician
8. Bob Kennedy, also known as Robert Kennedy, Robert Michael Kennedy (wd:Q4933007): American football player (1928–1991), American football player
9. Robert Kennedy, also known as Robert Edward Kennedy (wd:Q7346313): American Jesuit priest, psychoanalyst and Zen rōshi, writer
10. Robert Kennedy (wd:Q125958286): rhodesian rugby player (1925–1979), rugby union player

[Assistant]
The most likely match for "Robert Kennedy" is "Robert F. Kennedy" (wd:Q25310), the United States politician.

Next, I will look for his daughter(s) in Wikidata.

[Tool]
Top 10 property alternatives:
1. child, also known as has son, kids, mother of, kid, issue (wd:P40 as p/wdt): subject has object as child. Do not use for stepchildren—use "relative" (P1038), qualified with "type of kinship" (P1039), significant person, relative
2. mother, also known as mom, is child of, mommy, mum, mummy (wd:P25 as p/wdt): female parent of the subject. For stepmother, use "stepparent" (P3448), parent
3. father, also known as son of, child of, parent, is son of, is daughter of (wd:P22 as p/wdt): male parent of the subject. For stepfather, use "stepparent" (P3448), parent
4. sibling, also known as is sister of, is the brother of, is the sibling of, is the sister of, sib (wd:P3373 as p/wdt): the subject and the object have at least one common parent (brot...law, etc.) and step-siblings (step-brothers, step-sisters, etc.), relative
5. family, also known as royal house, noble family, member of family, house, dynasty (wd:P53 as p/wdt): family, including dynasty and nobility houses. Not family name (use P734 for family name)., member of
6. spouse, also known as married partner, married to, marry, partner, spouses (wd:P26 as p/wdt): the subject has the object as their spouse (husband, wife, partn...etc.). Use "unmarried partner" (P451) for non-married companions, significant person, relative

No other items found

[Tool]
Got 11 rows and 3 columns, showing the first 10 rows below:
| subject                       | property        | object                                 |
| ----------------------------- | --------------- | -------------------------------------- |
| Robert F. Kennedy (wd:Q25310) | child (wdt:P40) | Robert F. Kennedy Jr. (wd:Q1352872)    |
| Robert F. Kennedy (wd:Q25310) | child (wdt:P40) | Rory Kennedy (wd:Q273833)              |
| Robert F. Kennedy (wd:Q25310) | child (wdt:P40) | Kerry Kennedy (wd:Q467912)             |
| Robert F. Kennedy (wd:Q25310) | child (wdt:P40) | Joseph P. Kennedy II (wd:Q1386420)     |
| Robert F. Kennedy (wd:Q25310) | child (wdt:P40) | Kathleen Kennedy Townsend (wd:Q467861) |
| Robert F. Kennedy (wd:Q25310) | child (wdt:P40) | Michael LeMoyne Kennedy (wd:Q1804720)  |
| Robert F. Kennedy (wd:Q25310) | child (wdt:P40) | David A. Kennedy (wd:Q1975383)         |
| Robert F. Kennedy (wd:Q25310) | child (wdt:P40) | Douglas Harriman Kennedy (wd:Q5301573) |
| Robert F. Kennedy (wd:Q25310) | child (wdt:P40) | Christopher G. Kennedy (wd:Q5112377)   |
| Robert F. Kennedy (wd:Q25310) | child (wdt:P40) | Max Kennedy (wd:Q6794923)              |
| ...                           | ...             | ...                                    |

[Tool]
Got 4 rows and 1 column:
| daughter                               |
| -------------------------------------- |
| Rory Kennedy (wd:Q273833)              |
| Kathleen Kennedy Townsend (wd:Q467861) |
| Kerry Kennedy (wd:Q467912)             |
| Courtney Kennedy Hill (wd:Q5178632)    |

[Tool]
Top 10 property alternatives:
1. spouse, also known as married partner, married to, marry, partner, spouses (wd:P26 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): the subject has the object as their spouse (husband, wife, partn...etc.). Use "unmarried partner" (P451) for non-married companions, significant person, relative
2. relative, also known as relatives, grandparent, relation, non-binary parent, niece (wd:P1038 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): family member (qualify with "kinship to subject", P1039; for direct family member please use specific property), significant person
3. unmarried partner, also known as romantic partner, partner of, partners, posslq, relationship (wd:P451 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): someone with whom the person is in a relationship without being married. Use "spouse" (P26) for married couples, significant person
4. married name, also known as full name (married) (wd:P2562 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): name or surname adopted by a person upon marriage, name
5. place of marriage, also known as marriage location, wedding location, wed at, married in, married at (wd:P2842 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): location where the marriage was celebrated. Use as qualifier for property "spouse" (P26), significant place
6. birth name, also known as née, name at birth, name before marriage, ne, né (wd:P1477 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): full name of a person at birth, if different from their current, generally used name, name
7. connects with, also known as contacts, couples with, intersects at grade, links to, mates with (wd:P2789 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): item with which the item is physically connected, physically interacts with
8. companion of, also known as has astronomical companion, has companion, companion, astronomic companion of, astronomic companion (wd:P399 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): two or more astronomic bodies of the same type relating to each other
9. end time, also known as ends, stop time, endtime, fall date, ineffective (wd:P582 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): moment when an entity ceases to exist and a statement stops being entirely valid or no longer be true, point in time
10. relation (wd:P2309 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): qualifier to define a property constraint in combination with P2...h the property "relative" is "type of kinship" (P1039), not this

[Tool]
Got 5 rows and 2 columns:
| daughter                               | spouse                             |
| -------------------------------------- | ---------------------------------- |
| Rory Kennedy (wd:Q273833)              | Mark Bailey (wd:Q29938796)         |
| Kathleen Kennedy Townsend (wd:Q467861) | David Lee Townsend (wd:Q75326812)  |
| Kerry Kennedy (wd:Q467912)             | Andrew Cuomo (wd:Q11673)           |
| Courtney Kennedy Hill (wd:Q5178632)    | Paul Hill (wd:Q15133215)           |
| Courtney Kennedy Hill (wd:Q5178632)    | Jeffrey Robert Ruhe (wd:Q75326831) |

[Tool]
Got 5 rows and 4 columns:
| daughter                               | daughterLabel                  | spouse                             | spouseLabel              |
| -------------------------------------- | ------------------------------ | ---------------------------------- | ------------------------ |
| Rory Kennedy (wd:Q273833)              | Rory Kennedy (en)              | Mark Bailey (wd:Q29938796)         | Mark Bailey (en)         |
| Kathleen Kennedy Townsend (wd:Q467861) | Kathleen Kennedy Townsend (en) | David Lee Townsend (wd:Q75326812)  | David Lee Townsend (en)  |
| Kerry Kennedy (wd:Q467912)             | Kerry Kennedy (en)             | Andrew Cuomo (wd:Q11673)           | Andrew Cuomo (en)        |
| Courtney Kennedy Hill (wd:Q5178632)    | Courtney Kennedy Hill (en)     | Paul Hill (wd:Q15133215)           | Paul Hill (en)           |
| Courtney Kennedy Hill (wd:Q5178632)    | Courtney Kennedy Hill (en)     | Jeffrey Robert Ruhe (wd:Q75326831) | Jeffrey Robert Ruhe (en) |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query correctly retrieves the daughters of Robert F. Kennedy and their spouses using the appropriate Wikidata identifiers and the 'spouse' property. The answer matches the query results, and the query returns the IRIs as required. No further refinement is necessary.


PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
SELECT ?lyricist ?lyricistLabel WHERE {
  wd:Q482988 wdt:P676 ?lyricist .
  OPTIONAL {
    ?lyricist rdfs:label ?lyricistLabel .
    FILTER ( lang( ?lyricistLabel ) = "en" )
  }
}

The lyrics for the Polish national anthem were written by Józef Wybicki (wd:Q370069).

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
wikidata at https://qlever.cs.uni-freiburg.de/api/wikidata-sebastian

You can use the following SPARQL prefixes implicitly in all functions:
cc: <http://creativecommons.org/ns#
data: <https://www.wikidata.org/wiki/Special:EntityData/
dct: <http://purl.org/dc/terms/
geo: <http://www.opengis.net/ont/geosparql#
geof: <http://www.opengis.net/def/function/geosparql/
imdb: <https://www.imdb.com/
math: <http://www.w3.org/2005/xpath-functions/math#
ontolex: <http://www.w3.org/ns/lemon/ontolex#
owl: <http://www.w3.org/2002/07/owl#
p: <http://www.wikidata.org/prop/
pq: <http://www.wikidata.org/prop/qualifier/
pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/
pqv: <http://www.wikidata.org/prop/qualifier/value/
pr: <http://www.wikidata.org/prop/reference/
prn: <http://www.wikidata.org/prop/reference/value-normalized/
prov: <http://www.w3.org/ns/prov#
prv: <http://www.wikidata.org/prop/reference/value/
ps: <http://www.wikidata.org/prop/statement/
psn: <http://www.wikidata.org/prop/statement/value-normalized/
psv: <http://www.wikidata.org/prop/statement/value/
qfn: <http://qlever.cs.uni-freiburg.de/function#
ql: <http://qlever.cs.uni-freiburg.de/builtin-functions/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
ref: <http://www.wikidata.org/reference/
s: <http://www.wikidata.org/entity/statement/
schema: <http://schema.org/
skos: <http://www.w3.org/2004/02/skos/core#
v: <http://www.wikidata.org/value/
wd: <http://www.wikidata.org/entity/
wdno: <http://www.wikidata.org/prop/novalue/
wdt: <http://www.wikidata.org/prop/direct/
wdtn: <http://www.wikidata.org/prop/direct-normalized/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
dc: <http://purl.org/dc/elements/1.1/
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Who wrote the lyrics for the Polish national anthem?

[Assistant]
Let's break down the question:

1. We need to identify the entity for the Polish national anthem.
2. We need to find the property that links an anthem to its lyricist (the person who wrote the lyrics).
3. We will then write a SPARQL query to retrieve the lyricist's IRI (and optionally, their label).

First, I'll search for the entity representing the Polish national anthem.

[Tool]
Top 10 entity alternatives:
1. Poland Is Not Yet Lost, also known as Dąbrowski's Mazurka, Polish national anthem, Song of the Polish Legions in Italy (wd:Q482988): national anthem of Poland
2. national anthem, also known as national hymn, state anthem (wd:Q23691): song that represents a country or sovereign state
3. National Anthem of Chile, also known as Canción Nacional, National Anthem (wd:Q484161): National Anthem of Chile
4. National Anthem (wd:Q2697331): Lana Del Rey song
5. National Anthem (wd:Q116945688): 2023 film directed by Luke Gilford
6. The National Anthem, also known as National Anthem (wd:Q19573235): 1999 film by Wu Ziniu
7. National Anthem (wd:Q16955069): album by The Away Team
8. National Anthem (wd:Q39078564): 2003 film
9. America, also known as National Anthem, National Hymn (wd:Q109781686): melody often used for national anthems; first published in 1744
10. National Anthem (wd:Q110059383): sketch from Saturday Night Live

[Assistant]
The entity for the Polish national anthem is "Poland Is Not Yet Lost" (wd:Q482988).

Next, I need to find the property that links an anthem (or a song) to its lyricist. I'll search for properties related to "lyrics" or "lyricist".

[Tool]
Top 10 property alternatives:
1. lyricist, also known as text poet, writer (of song lyrics), words by, text writer, text by (wd:P676 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): author of song lyrics, author
2. composer, also known as music by, written by, songwriter, musical score by, film score by (wd:P86 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): person(s) who wrote the music [for lyricist, use "lyrics by" (P676)], creator
3. LyricsTranslate ID, also known as LyricsTranslate, LyricsTranslate identifier (wd:P7212 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): identifier on LyricsTranslate
4. author, also known as writer, written by, poet, playwright, maker (wd:P50 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): main creator(s) of a written work (use on works, not humans); us...hor name string) when Wikidata item is unknown or does not exist, creator
5. has lyrics, also known as has text, has verses, lyrics that this work has, text, text that this work has (wd:P6439 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): work whose text is used as the lyrics of this work, references work, tradition or theory
6. screenwriter, also known as story by, teleplay by, video game writer, writer (of screenplays), writing credits (wd:P58 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): person(s) who wrote the script for subject item, film crew member, author
7. author name string, also known as short author name, writer named as, writer name, writer indicated as, songwriting credits string (wd:P2093 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): stores unspecified author or editor name for publications; use i...or editor (P98) does not exist or is not known. Do not use both.
8. first line, also known as incipit, opening line, fl, first verse, first sentence (wd:P1922 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): first line (incipit) of a poem, first sentence of a novel, speech, etc.
9. adapted by, also known as adapter, adaptor, arranged by, arranger, remixed by (wd:P5202 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): person responsible for the arrangement or adaptation resulting in this version of the original work
10. performer, also known as actor, sung by, singer, recording by, recorded by (wd:P175 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): actor, musician, band or other performer associated with this role or musical work, contributor to the creative work or subject

[Assistant]
The property for lyricist is wd:P676 ("lyricist").

Now, I will construct a SPARQL query to find the lyricist of the Polish national anthem (wd:Q482988) using the property wd:P676. I will also try to get the label of the lyricist for clarity, but the main result will be the IRI.

Here is the query I will use:
```sparql
SELECT ?lyricist ?lyricistLabel WHERE {
  wd:Q482988 wdt:P676 ?lyricist .
  OPTIONAL { ?lyricist rdfs:label ?lyricistLabel . FILTER (lang(?lyricistLabel) = "en") }
}
```
I will now execute this query.

[Tool]
Got 1 row and 2 columns:
| lyricist                   | lyricistLabel      |
| -------------------------- | ------------------ |
| Józef Wybicki (wd:Q370069) | Józef Wybicki (en) |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query correctly retrieves the lyricist (Józef Wybicki) of the Polish national anthem using the appropriate entity (wd:Q482988) and property (wdt:P676). The query also optionally retrieves the English label for the lyricist, which is helpful but not required. The answer is accurate and complete according to the user's question and the rules provided.


PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX wd: <http://www.wikidata.org/entity/>
ASK {
  wd:Q810986 wdt:P31 wd:Q7889
}

Yes, there is a video game called Battle Chess.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
wikidata at https://qlever.cs.uni-freiburg.de/api/wikidata-sebastian

You can use the following SPARQL prefixes implicitly in all functions:
cc: <http://creativecommons.org/ns#
data: <https://www.wikidata.org/wiki/Special:EntityData/
dct: <http://purl.org/dc/terms/
geo: <http://www.opengis.net/ont/geosparql#
geof: <http://www.opengis.net/def/function/geosparql/
imdb: <https://www.imdb.com/
math: <http://www.w3.org/2005/xpath-functions/math#
ontolex: <http://www.w3.org/ns/lemon/ontolex#
owl: <http://www.w3.org/2002/07/owl#
p: <http://www.wikidata.org/prop/
pq: <http://www.wikidata.org/prop/qualifier/
pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/
pqv: <http://www.wikidata.org/prop/qualifier/value/
pr: <http://www.wikidata.org/prop/reference/
prn: <http://www.wikidata.org/prop/reference/value-normalized/
prov: <http://www.w3.org/ns/prov#
prv: <http://www.wikidata.org/prop/reference/value/
ps: <http://www.wikidata.org/prop/statement/
psn: <http://www.wikidata.org/prop/statement/value-normalized/
psv: <http://www.wikidata.org/prop/statement/value/
qfn: <http://qlever.cs.uni-freiburg.de/function#
ql: <http://qlever.cs.uni-freiburg.de/builtin-functions/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
ref: <http://www.wikidata.org/reference/
s: <http://www.wikidata.org/entity/statement/
schema: <http://schema.org/
skos: <http://www.w3.org/2004/02/skos/core#
v: <http://www.wikidata.org/value/
wd: <http://www.wikidata.org/entity/
wdno: <http://www.wikidata.org/prop/novalue/
wdt: <http://www.wikidata.org/prop/direct/
wdtn: <http://www.wikidata.org/prop/direct-normalized/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
dc: <http://purl.org/dc/elements/1.1/
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Is there a video game called Battle Chess?

[Assistant]
Let's break down the question:

1. The user is asking if there exists a video game called "Battle Chess".
2. I need to identify the entity for "Battle Chess" and check if it is classified as a video game.

First, I'll search for the entity "Battle Chess" in Wikidata to see if it exists and what type of entity it is.

[Tool]
Top 10 entity alternatives:
1. Battle Chess (wd:Q810986): 1988 chess-playing video game
2. Battle Chess (wd:Q108370586): video game series
3. Check vs. Mate, also known as Battle vs. Chess (wd:Q3636865): 2011 video game
4. Battle Chess 4000, also known as BC 4000, BC4000 (wd:Q111966835): 1992 video game developed by Interplay
5. Eonica Chess Battle (wd:Q122824456): 2020 early access video game
6. Battle Chess II: Chinese Chess (wd:Q3636840): 1990 video game
7. Battle Chess: Game of Kings (wd:Q4869999): 2014 video game remake
8. Battle Chess Enhanced CD Rom (wd:Q124877749): 1992 video game
9. chess, also known as chess game, Western chess, modern European chess, international chess (wd:Q718): strategy board game
10. battle, also known as ⚔, combat (wd:Q178561): part of a war which is well defined in duration, area and force commitment

[Assistant]
The search results show that there is an entity called "Battle Chess" (wd:Q810986), which is described as a 1988 chess-playing video game. This matches the user's query.

To answer the question, I will write an ASK query to check if "Battle Chess" (wd:Q810986) is classified as a video game in Wikidata.

[Tool]
Top 10 property alternatives:
1. part of the series, also known as series, video game series, subseries, part of series, listed in (wd:P179 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): series which contains the subject, part of
2. HowLongToBeat ID, also known as HLTB, How Long to Beat, time to complete video game (wd:P2816 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): identifier of a video game at the website HowLongToBeat
3. game mode, also known as player mode, play mode, player configuration, mode, gameplay (wd:P404 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): video game's available playing mode(s), has use
4. publisher, also known as video game publisher, software publisher, comic book publisher, sheet music publisher, publishing house (wd:P123 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): organization or person responsible for publishing books, periodicals, printed music, podcasts, games or software
5. developer, also known as written by, video game developer, video game dev, game developer, game dev (wd:P178 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): organization or person that developed the item, creator
6. software version identifier, also known as software release number, software version number, software release version, software update identifier, software update number (wd:P348 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): numeric or nominal identifier of a version of a software program or file format, current or past, has edition or translation, edition number
7. demo of, also known as demo version of, game demo of, trial version of (wd:P12050 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): video game or software that this trial version is based on
8. platform, also known as computing platform, runtime, published on, platforms, hardware (wd:P400 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): platform for which a work was developed or released, or the specific platform version of a software product
9. Abandonware-France game ID, also known as AF video game ID, A-F video game ID, Abandonware-France video game ID, Abandonware-France videogame ID (wd:P12267 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): identifier of a video game in the Abandonware France database
10. VideoGamer.com game ID, also known as VideoGamer.com game identifier, VideoGamer.com identifier, VideoGamer ID (wd:P8023 as prn/pqv/psv/prv/pqn/ps/wdtn/p/pq/pr/psn/wdt): identifier of a video game in the VideoGamer.com database

[Tool]
Got 300 rows and 3 columns, showing the first 10 rows below:
| subject                   | property                            | object                               |
| ------------------------- | ----------------------------------- | ------------------------------------ |
| Battle Chess (wd:Q810986) | instance of (wdt:P31)               | video game (wd:Q7889)                |
| Battle Chess (wd:Q810986) | publication date (wdt:P577)         | 1988-01-01T00:00:00Z (xsd:dateTime)  |
| Battle Chess (wd:Q810986) | language of work or name (wdt:P407) | English (wd:Q1860)                   |
| Battle Chess (wd:Q810986) | Commons category (wdt:P373)         | Battle Chess                         |
| Battle Chess (wd:Q810986) | country of origin (wdt:P495)        | United States (wd:Q30)               |
| Battle Chess (wd:Q810986) | official website (wdt:P856)         | <https://www.interplay.com>          |
| Battle Chess (wd:Q810986) | genre (wdt:P136)                    | chess video game (wd:Q71679871)      |
| Battle Chess (wd:Q810986) | publisher (wdt:P123)                | Interplay Entertainment (wd:Q628249) |
| Battle Chess (wd:Q810986) | distribution format (wdt:P437)      | digital distribution (wd:Q269415)    |
| Battle Chess (wd:Q810986) | distributed by (wdt:P750)           | Steam (wd:Q337535)                   |
| ...                       | ...                                 | ...                                  |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query is correct for the question. It uses an ASK query to check if the Wikidata item for 'Battle Chess' (wd:Q810986) is an instance of 'video game' (wd:Q7889). This directly answers the yes/no question and follows all the required rules. No further refinement is needed.