PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX p: <http://www.wikidata.org/prop/>
SELECT ?actor ?actorLabel WHERE {
  wd:Q12206942 p:P725 ?stmt .
  ?stmt ps:P725 ?actor .
  ?stmt pq:P407 wd:Q1860 .
  OPTIONAL {
    ?actor rdfs:label ?actorLabel FILTER ( LANG( ?actorLabel ) = "en" )
  }
}

Using entities:
Darth Vader (wd:Q12206942), also known as Anakin Skywalker, Lord Vader, Vader
English (wd:Q1860), also known as English (language), English language, English-language, English the Global Language, The English language

Using properties:
language of work or name (wd:P407 as pq), also known as audio language, available in, broadcasting language, language, language of name, etc.
voice actor (wd:P725 as p/ps), also known as dubbed by, seiyu, VA, VO, vocal role as, etc.

Answer: The English-language voice actor for Darth Vader in the original Star Wars films is James Earl Jones (wd:Q203960).

who voiced darth vader in the original star wars movies?

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

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. Search for the 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. Execute intermediate queries to get feedback and to verify your assumptions. You may need to refine or rethink your current plan based on the query results and go back to step 2 if needed, possibly multiple times.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

You have access to the following knowledge graphs:
wikidata at http://localhost:7001 without notes

You are provided with the following notes across all knowledge graphs:
No notes available

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/
qlss: <https://qlever.cs.uni-freiburg.de/spatialSearch/
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 these rules:
- Explain your thought process before and after each step and function call.
- Do not just use or make up entity or property identifiers without verifying their existence in the knowledge graphs first.
- 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.
- Always execute your final SPARQL query before giving an answer to make sure it returns the expected results.
- 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.
- 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.
- 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.
- For questions with a "True" or "False" answer the SPARQL query should be an ASK query.

[User] who voiced darth vader in the original star wars movies?

[Assistant]
Plan:
1. Find the Wikidata item for "Darth Vader".
2. Find which property records the voice actor (search for "voice actor" in properties).
3. Use that property to query the voice actor(s) for the Darth Vader item, and verify the actor(s) (e.g., James Earl Jones).
I'll now search for the "Darth Vader" entity. I'll explain my reasoning before and after the search.

[Tool]
Top 10 entity alternatives:
1. Darth Vader (wd:Q12206942), also known as Anakin Skywalker, Lord Vader, Vader: is instance of fictional humanoid extraterrestrial / is instance of cyborg in a work of fiction / is instance of character from Star Wars / main villain of the Star Wars Trilogy / main villain of the Star Wars Trilogy / is instance of television character / is instance of video game character / has occupation commander-in-chief / is instance of literary character / is instance of animated character / is instance of fictional human / has occupation starship pilot / is instance of film character / has occupation mass murderer / has occupation war criminal / has occupation swordfighter / has occupation knight / has occupation Knight
2. Darth Vader (wd:Q15995646), also known as Darth Oleksiyovych Vader: has occupation politician / is instance of human / Ukrainian politician
3. Darth Vader (wd:Q125307067), also known as 1978 Darth Vader: is instance of miniature action figure / 1978 Star Wars miniature action figure
4. Darth Vader (wd:Q47512405): painting by Marshall Arisman / painting by Marshall Arisman / is instance of painting
5. Darth Vader Grotesque (wd:Q5225625): artwork by Jay Hall Carpenter / is instance of sculpture
6. Darth & Vader (wd:Q19705315): is instance of musical group
7. The Imperial March (wd:Q2061833, matched via Darth Vader's Theme), also known as Darth Vader's Theme, Imperial March: musical theme composed by John Williams for the 1980 film "Star Wars: The Empire Strikes Back" / musical theme from the Star Wars franchise / musical theme from the Star Wars franchise / is instance of musical work/composition
8. Star Wars: Darth Vader (wd:Q30895582): is instance of comic book series / American comic book series
9. Darth Vader's lightsaber (wd:Q109322280), also known as Darth Vader's laser sword: fictional weapon from Star Wars / is instance of Lightsaber / is instance of lightsaber
10. Shawn Rescues Darth Vader (wd:Q50814533): is instance of television series episode / episode of Psych (S6 E1)

[Assistant] I'll search for properties related to "voice actor" to find which property is used to indicate who voiced a fictional character. Then I'll query Darth Vader for that property.

[Tool]
Top 10 property alternatives:
1. voice actor (wd:P725 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn), also known as dubbed by, seiyu, VA, VO, vocal role as, etc.: performer of a spoken role in a creative work such as ... as qualifier] [use "cast member" (P161) for live acting] / is subproperty of film crew member / is subproperty of cast member
2. audio recording of the subject's spoken voice (wd:P990 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via speaking voice), also known as audio clip, recording of the subject's spoken voice, speaking voice, spoken voice, voice recording, etc.: audio file representing the speaking voice of a person; or of an animated cartoon or other fictitious character / is subproperty of audio
3. voice type (wd:P412 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via voice category), also known as range of voice, register, tessitura, type of voice, vocal type, etc.: person's voice type. expected values: soprano, mezzo-soprano, contralto, countertenor, tenor, baritone, bass (and derivatives)
4. spoken by (wd:P10894 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via speaker), also known as narrator, speaker, P10894: the person who is speaking in this audio or video file
5. speaker (wd:P823 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn), also known as speech by, spoken by, P823: person who is speaker for this event, ceremony, keynote, presentation or in a literary work / is subproperty of participant / is subproperty of spoken by
6. indigenous to (wd:P2341 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via spoken by), also known as native to, originating from, spoken by, P2341: place or ethnic group where a language, art genre, cultural ... species or variety is found (or was originally found) / area or ethnic group that a language, folk dance, cooking ... other cultural expression is found (or was originally found)
7. Behind The Voice Actors character ID (wd:P5107 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn), also known as Behind The Voice Actors character identifier, BTVA character ID, BTVA character identifier, P5107: identifier of a character from the Behind The Voice Actors website
8. Behind The Voice Actors person ID (wd:P5007 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn), also known as behindthevoiceactors.com person ID, BTVA ID, BTVA person ID, P5007: identifier of a person on the website Behind The Voice Actors / identifier of a person on the website Behind The Voice Actors / identifier of a person on the website Behind The Voice Actors
9. vocalized name (wd:P4239 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn), also known as ḥarakāt, nikud, P4239: item name with full vowel marks
10. MyAnimeList people ID (wd:P4084 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via MAL voice actor ID), also known as MAL actor ID, MAL people ID, MAL person ID, MAL staff ID, MAL voice actor ID, etc.: identifier for a person or group of people on MyAnimeList

[Assistant] I'll query the Darth Vader item for the "voice actor" (P725) statements to see which actors are recorded.

[Tool]
Got 3 rows and 3 columns:
| subject                    | property               | object                         |
| -------------------------- | ---------------------- | ------------------------------ |
| Darth Vader (wd:Q12206942) | voice actor (wdt:P725) | James Earl Jones (wd:Q203960)  |
| Darth Vader (wd:Q12206942) | voice actor (wdt:P725) | Jean-Louis Faure (wd:Q3166756) |
| Darth Vader (wd:Q12206942) | voice actor (wdt:P725) | Philippe Catoire (wd:Q3379526) |

[Assistant] I'll check the full statements (p:P725) for Darth Vader to see if qualifiers indicate which works (films) the voice actor performed in, so I can restrict to the original trilogy. I'll run a list query for subject wd:Q12206942 and property p:P725.

[Tool]
Got 3 rows and 3 columns:
| subject                    | property             | object                                           |
| -------------------------- | -------------------- | ------------------------------------------------ |
| Darth Vader (wd:Q12206942) | voice actor (p:P725) | s:Q12206942-119525c5-46f2-76e4-0daf-cf0b497bd2f9 |
| Darth Vader (wd:Q12206942) | voice actor (p:P725) | s:Q12206942-8e5dad7f-421b-f687-7d60-7df4334ac724 |
| Darth Vader (wd:Q12206942) | voice actor (p:P725) | s:Q12206942-e4a3d603-4c53-dd12-08a1-d092cbfdb048 |

[Assistant] I'll inspect each statement node to get qualifiers, especially the "applies to part" (P518?) or "in work" (P711?) and "for work" properties. First I'll list triples with one statement node to see its qualifiers. I'll pick the first statement node.

[Tool]
Got 7 rows and 3 columns:
| subject                                          | property                           | object                                       |
| ------------------------------------------------ | ---------------------------------- | -------------------------------------------- |
| s:Q12206942-119525c5-46f2-76e4-0daf-cf0b497bd2f9 | language of work or name (pq:P407) | French (wd:Q150)                             |
| s:Q12206942-119525c5-46f2-76e4-0daf-cf0b497bd2f9 | voice actor (ps:P725)              | Philippe Catoire (wd:Q3379526)               |
| s:Q12206942-119525c5-46f2-76e4-0daf-cf0b497bd2f9 | pq:P10663                          | Star Wars Rebels (wd:Q28787)                 |
| s:Q12206942-119525c5-46f2-76e4-0daf-cf0b497bd2f9 | wikibase:rank                      | wikibase:NormalRank                          |
| s:Q12206942-119525c5-46f2-76e4-0daf-cf0b497bd2f9 | rdf:type                           | wikibase:BestRank                            |
| s:Q12206942-119525c5-46f2-76e4-0daf-cf0b497bd2f9 | prov:wasDerivedFrom                | ref:eda8846a3ba3f48209198fbade5cd27ff8a6f477 |
| s:Q12206942-119525c5-46f2-76e4-0daf-cf0b497bd2f9 | rdf:type                           | wikibase:Statement                           |

[Assistant] I'll inspect the statement node for the second p:P725 statement to see its qualifiers (likely Jean-Louis Faure). I'll call list on that statement node. I explain that this will reveal qualifiers indicating which works the voice actor performed in.

[Tool]
Got 7 rows and 3 columns:
| subject                                          | property                           | object                                       |
| ------------------------------------------------ | ---------------------------------- | -------------------------------------------- |
| s:Q12206942-8e5dad7f-421b-f687-7d60-7df4334ac724 | language of work or name (pq:P407) | French (wd:Q150)                             |
| s:Q12206942-8e5dad7f-421b-f687-7d60-7df4334ac724 | voice actor (ps:P725)              | Jean-Louis Faure (wd:Q3166756)               |
| s:Q12206942-8e5dad7f-421b-f687-7d60-7df4334ac724 | pq:P10663                          | Star Wars Rebels (wd:Q28787)                 |
| s:Q12206942-8e5dad7f-421b-f687-7d60-7df4334ac724 | wikibase:rank                      | wikibase:NormalRank                          |
| s:Q12206942-8e5dad7f-421b-f687-7d60-7df4334ac724 | rdf:type                           | wikibase:BestRank                            |
| s:Q12206942-8e5dad7f-421b-f687-7d60-7df4334ac724 | prov:wasDerivedFrom                | ref:eda8846a3ba3f48209198fbade5cd27ff8a6f477 |
| s:Q12206942-8e5dad7f-421b-f687-7d60-7df4334ac724 | rdf:type                           | wikibase:Statement                           |

[Assistant] Now inspect the statement node for the third p:P725 statement, which should correspond to James Earl Jones.

[Tool]
Got 6 rows and 3 columns:
| subject                                          | property                           | object                                       |
| ------------------------------------------------ | ---------------------------------- | -------------------------------------------- |
| s:Q12206942-e4a3d603-4c53-dd12-08a1-d092cbfdb048 | language of work or name (pq:P407) | English (wd:Q1860)                           |
| s:Q12206942-e4a3d603-4c53-dd12-08a1-d092cbfdb048 | voice actor (ps:P725)              | James Earl Jones (wd:Q203960)                |
| s:Q12206942-e4a3d603-4c53-dd12-08a1-d092cbfdb048 | wikibase:rank                      | wikibase:NormalRank                          |
| s:Q12206942-e4a3d603-4c53-dd12-08a1-d092cbfdb048 | rdf:type                           | wikibase:BestRank                            |
| s:Q12206942-e4a3d603-4c53-dd12-08a1-d092cbfdb048 | prov:wasDerivedFrom                | ref:eda8846a3ba3f48209198fbade5cd27ff8a6f477 |
| s:Q12206942-e4a3d603-4c53-dd12-08a1-d092cbfdb048 | rdf:type                           | wikibase:Statement                           |

[Assistant] I'll search for the film "Star Wars" (A New Hope) entity to inspect its cast statements and see how Darth Vader's voice credit is represented on film items. I'll search for "Star Wars 1977" or "Star Wars (film)".

[Tool]
Top 10 entity alternatives:
1. Star Wars: Episode IV – A New Hope (wd:Q17738, matched via 1977 Star Wars), also known as 1977 Star Wars, A New Hope, Star Wars, Star Wars: A New Hope, Star Wars: Episode IV, etc.: 1977 film directed by George Lucas / is instance of film
2. Star Wars: The Clone Wars (wd:Q382289, matched via Star Wars: Clone Wars), also known as Star Wars: Clone Wars, The Clone Wars: is instance of animated film / 2008 film by Dave Filoni
3. Star Wars: Clone Wars (wd:Q616313), also known as Clone Wars: is instance of animated television series / American animated television series / is instance of micro-series
4. Star Wars: Clone Wars (wd:Q7601080): is instance of comic book series / comic series
5. Star Wars (wd:Q462): epic space opera multimedia franchise created by George Lucas / is instance of media franchise / is instance of film franchise / is instance of brand / film series / film series
6. Star Wars: Episode V – The Empire Strikes Back (wd:Q181795, matched via Star Wars 5), also known as Star Wars 5, Star Wars Episode V: The Empire Strikes Back, Star Wars: Episode V The Empire Strikes Back, Star Wars V, The Empire Strikes Back: 1980 American epic space opera film directed by Irvin Kershner / is instance of film
7. Star Wars: Episode VII – The Force Awakens (wd:Q6074, matched via Star Wars 7), also known as Force Awakens, Star Wars 7, Star Wars: Episode 7, Star Wars: Episode VII, Star Wars: TFA, etc.: 2015 film directed by J. J. Abrams / is instance of film
8. Star Wars: Episode VIII – The Last Jedi (wd:Q18486021, matched via Star Wars 8), also known as Last Jedi, Star Wars 8, Star Wars Episode VIII, Star Wars: Episode VIII, Star Wars: The Last Jedi, etc.: 2017 film directed by Rian Johnson / is instance of film
9. Star Wars: The Clone Wars (wd:Q632672), also known as The Clone Wars: is instance of animated television series / 2008 American television series
10. Strategic Defense Initiative (wd:Q211031, matched via Star Wars program), also known as SDI, Star Wars program: American missile defense system / American missile defense system / is instance of project

[Assistant]
I need to determine who voiced Darth Vader in the original Star Wars movies (original trilogy: Episodes IV–VI). The user likely expects "James Earl Jones" as the voice, although David Prowse physically performed the actor in the suit. The question asks "who voiced darth vader in the original star wars movies?" That's a general question; we should return the voice actor(s) for the original trilogy. I'll query the films Episode IV (Q17738), Episode V (Q181795), Episode VI (Q42049) for cast roles where character is Darth Vader (wd:Q12206942) and role is voice actor (P725) or cast member P161 with "voice actor" qualifier. I'll search properties for "cast member" (P161) usage with qualifiers for character. But simpler: check film items for which voice actor is James Earl Jones for Darth Vader in those films. I'll write a SPARQL to find persons who are P725 (voice actor) for the character Darth Vader and whose statement has a qualifier "applies to part" or "in work" referencing one of the three film items. But from earlier, P725 is on the character item with qualifiers referencing works via pq:P10663 (?) I saw pq:P10663 used with Star Wars Rebels earlier. But need to find statements where P725 has qualifier indicating the works (like "Star Wars" films). Let's search for statements where subject is wd:Q12206942 and p:P725 has pq linking to film items Episode IV, V, VI. We looked at statement nodes earlier and saw pq:P10663 with Star Wars Rebels for French dub ones. For James Earl Jones statement node there was no pq:P10663; maybe it's generic English voice with no qualifiers. But the voice actor for James Earl Jones is credited for original trilogy films. We need to be careful: The requirement: For True/False questions must be ASK, but this is open question. We must follow stepwise explanation and execute final query. The SPARQL should return IRIs. Also must explain thought process before and after each step and function call. We have been doing that.

Next, craft a SPARQL query that finds persons who are voice actor (P725) for Darth Vader and connected to films in the original trilogy. Approach: Find items ?film in {Q17738, Q181795, Q42049}. Check if film has cast member ?actor with property P161 where ?actor has role of ?character? Hmm P161 points to actor (person) not to a role. But P161 statements on film may have qualifiers "character role" P453? Let's inspect film Q17738 for cast triples.
I'll inspect the film item for "Star Wars: Episode IV – A New Hope" (wd:Q17738) to see how cast members and their roles are modeled, so I can craft a query linking the films, the character Darth Vader, and voice actor statements. I'll list some triples for the film focusing on P161 (cast member).

[Tool]
Got 24 rows and 3 columns, showing the first 10 rows below:
| subject                                        | property             | object                                        |
| ---------------------------------------------- | -------------------- | --------------------------------------------- |
| Star Wars: Episode IV – A New Hope (wd:Q17738) | cast member (p:P161) | s:q17738-0061A404-C555-426F-B3BB-1BF324DE638B |
| Star Wars: Episode IV – A New Hope (wd:Q17738) | cast member (p:P161) | s:q17738-0457387C-0C3C-4565-8C8D-FA9CB1AC968D |
| Star Wars: Episode IV – A New Hope (wd:Q17738) | cast member (p:P161) | s:Q17738-1203f11b-ec3d-4974-962d-4b8dbae7476c |
| Star Wars: Episode IV – A New Hope (wd:Q17738) | cast member (p:P161) | s:q17738-1275AC31-F145-4D4F-9DAF-5E7013BF99BD |
| Star Wars: Episode IV – A New Hope (wd:Q17738) | cast member (p:P161) | s:q17738-14302895-6D22-477B-98F1-9D8CEA387E1B |
| Star Wars: Episode IV – A New Hope (wd:Q17738) | cast member (p:P161) | s:Q17738-261f8483-4d5d-b1d7-8374-cc2bbba6b779 |
| Star Wars: Episode IV – A New Hope (wd:Q17738) | cast member (p:P161) | s:Q17738-38E9E7DD-1232-4BDA-B233-2DBCDD1F10E6 |
| Star Wars: Episode IV – A New Hope (wd:Q17738) | cast member (p:P161) | s:Q17738-3E1A0649-AA92-4D31-827F-54E5C4D2883E |
| Star Wars: Episode IV – A New Hope (wd:Q17738) | cast member (p:P161) | s:q17738-5621E8ED-C568-4630-A1EC-6BFBC489D962 |
| Star Wars: Episode IV – A New Hope (wd:Q17738) | cast member (p:P161) | s:q17738-6250D6F7-D8BF-4283-9AB7-7767D48341E6 |
| ...                                            | ...                  | ...                                           |

[Assistant] I'll inspect one statement node to see how the cast member and character are represented. I'll pick one statement node (first).

[Tool]
Got 10 rows and 3 columns:
| subject                                       | property                 | object                                       |
| --------------------------------------------- | ------------------------ | -------------------------------------------- |
| s:q17738-0061A404-C555-426F-B3BB-1BF324DE638B | cast member (ps:P161)    | Peter Cushing (wd:Q309589)                   |
| s:q17738-0061A404-C555-426F-B3BB-1BF324DE638B | character role (pq:P453) | Wilhuff Tarkin (wd:Q51800)                   |
| s:q17738-0061A404-C555-426F-B3BB-1BF324DE638B | wikibase:rank            | wikibase:NormalRank                          |
| s:q17738-0061A404-C555-426F-B3BB-1BF324DE638B | rdf:type                 | wikibase:BestRank                            |
| s:q17738-0061A404-C555-426F-B3BB-1BF324DE638B | prov:wasDerivedFrom      | ref:238642685a36169f1ef547d1e86503af0cad900a |
| s:q17738-0061A404-C555-426F-B3BB-1BF324DE638B | rdf:type                 | wikibase:Statement                           |
| s:q17738-0061A404-C555-426F-B3BB-1BF324DE638B | prov:wasDerivedFrom      | ref:69d91fac0786ca12456018d40c0e24c60eab7fdc |
| s:q17738-0061A404-C555-426F-B3BB-1BF324DE638B | prov:wasDerivedFrom      | ref:70fd498e5246c8b976b06a4a068722ed1f898ecb |
| s:q17738-0061A404-C555-426F-B3BB-1BF324DE638B | prov:wasDerivedFrom      | ref:9638a15acdd02d08e07ed1f6870853e991b5ef7e |
| s:q17738-0061A404-C555-426F-B3BB-1BF324DE638B | prov:wasDerivedFrom      | ref:e014da5e3472797a39515bdac0fb6ca59b262075 |

[Assistant]
I need the cast member statement node where the character role is Darth Vader (wd:Q12206942). Let's search statements of the film where pq:P453 equals Darth Vader. I can query for subject s nodes with pq:P453 wd:Q12206942 but easier to craft a SPARQL query: find ?film in original trilogy where ?film p:P161 ?stmt and ?stmt has pq:P453 wd:Q12206942, then get ps:P161 actor. I'll build a SPARQL query to retrieve actors who played the character (including voice actors) in those films. That will show both David Prowse (actor) and James Earl Jones (voice). The question asks who voiced Darth Vader in the original movies — that should be James Earl Jones. But we'll produce the query listing actors associated via cast member whose character role is Darth Vader and whose role is voice actor? But PS:P161 is actor (ps:P161) — but doesn't indicate whether voice or physical. The voice credit may be represented as separate cast member statement with qualifier 'voice actor' (P725) or a separate property. Alternatively, some cast members have qualifier "credited as voice" or "role" indicating voice. Let's inspect the cast statements with character Darth Vader to see which actors are included. We'll search for film cast statements with P453 = Darth Vader. I'll run a functions.execute SPARQL to find such cases across the three films. I'll explain before executing.
I'll run a SPARQL query that finds, for each film in the original trilogy, cast member statements where the character role (P453) is Darth Vader (wd:Q12206942), and return the actor (ps:P161) and any qualifiers like "voice actor (P725)". This will show who performed and who voiced the role in each film. I'll execute the query.

[Tool]
SPARQL execution failed:
HTTPConnectionPool(host='localhost', port=7001): Read timed out.

[Assistant] I'll run a SPARQL query that finds the voice actor (P725) statements for the Darth Vader character (wd:Q12206942) whose language qualifier (pq:P407) is English (wd:Q1860). That should return James Earl Jones (the English voice used in the original films). I'll execute the query now.

[Tool]
Got 1 row and 2 columns:
| actor                         | actorLabel            |
| ----------------------------- | --------------------- |
| James Earl Jones (wd:Q203960) | James Earl Jones (en) |

[Assistant] The query returned James Earl Jones as the English voice actor for Darth Vader. This likely answers the user question. I will now prepare the final SPARQL query that returns the identifiers of the voice actor(s) who voiced Darth Vader in the original Star Wars movies. To be thorough, I will restrict to voice actor statements for Darth Vader that apply to any of the original trilogy films (Episodes IV, V, VI). However, earlier the P725 statements used pq:P10663 for Star Wars Rebels (for French dubs) and the English James Earl Jones statement did not have a pq pointing to specific film items. That means linking P725 statements to specific films may be inconsistent. The user likely expects a simple answer: James Earl Jones. I'll craft a SPARQL query that retrieves all persons who are voice actor (wdt:P725) for wd:Q12206942 and who have English language qualifier or who are linked via film qualifiers to one of the original trilogy films. To include all cases, I'll select all voice actors for the character and optionally filter for those with English language or whose P725 statement has qualifier pq:P10663 pointing to one of the three films. But pq:P10663 seems non-standard; it's used earlier referencing Star Wars Rebels. Which property is that? Let's inspect property P10663.

[Tool] Got no rows and 3 columns

[Tool]
SPARQL execution failed:
('Connection aborted.', RemoteDisconnected('Remote end closed connection without response'))

[Assistant] I'll run a final SPARQL query that finds the English-language voice actor (P725 with pq:P407 = English) for the Darth Vader character (wd:Q12206942). This should return the actor who voiced Darth Vader in the original (English) films. Now I'll execute that query and report the result.

[Tool] Stopping


PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
SELECT DISTINCT ?vicePresident ?vicePresidentLabel WHERE {
  wd:Q9696 p:P39 ?presSt .
  ?presSt ps:P39 wd:Q11696 .
  ?presSt pq:P580 ?presStart .
  ?presSt pq:P582 ?presEnd .
  ?vicePresident p:P39 ?vpSt .
  ?vpSt ps:P39 wd:Q11699 .
  ?vpSt pq:P580 ?vpStart .
  ?vpSt pq:P582 ?vpEnd .
  FILTER ( xsd:dateTime ( ?vpStart ) < xsd:dateTime ( ?presEnd ) && xsd:dateTime ( ?vpEnd ) > xsd:dateTime ( ?presStart ) ) OPTIONAL {
    ?vicePresident rdfs:label ?vicePresidentLabel .
    FILTER ( LANG( ?vicePresidentLabel ) = "en" )
  }
}

Using entities:
President of the United States (wd:Q11696), also known as American President, POTUS, President of America, President of the United States of America, President of the U.S., etc.
Vice President of the United States (wd:Q11699), also known as President of the Senate, President of the United States Senate, United States Vice President, United States VP, USA VP, etc.
John F. Kennedy (wd:Q9696), also known as Jack Kennedy, JFK, J. F. Kennedy, JF Kennedy, John Fitzgerald "Jack" Kennedy, etc.

Using properties:
position held (wd:P39 as p/ps), also known as function, held position, holds position, job, office held, etc.
start time (wd:P580 as pq), also known as began, beginning, building date, effective, effectivity, etc.
end time (wd:P582 as pq), also known as abolished, cease date, cease operation, cease time, closed, etc.

Got 1 row and 2 columns:
| vicePresident                | vicePresidentLabel     |
| ---------------------------- | ---------------------- |
| Lyndon B. Johnson (wd:Q9640) | Lyndon B. Johnson (en) |

Answer: Lyndon B. Johnson (wd:Q9640) was the Vice President during John F. Kennedy's presidency.

who was vice president when jfk was president?

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

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. Search for the 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. Execute intermediate queries to get feedback and to verify your assumptions. You may need to refine or rethink your current plan based on the query results and go back to step 2 if needed, possibly multiple times.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

You have access to the following knowledge graphs:
wikidata at http://localhost:7001 without notes

You are provided with the following notes across all knowledge graphs:
No notes available

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/
qlss: <https://qlever.cs.uni-freiburg.de/spatialSearch/
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 these rules:
- Explain your thought process before and after each step and function call.
- Do not just use or make up entity or property identifiers without verifying their existence in the knowledge graphs first.
- 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.
- Always execute your final SPARQL query before giving an answer to make sure it returns the expected results.
- 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.
- 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.
- 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.
- For questions with a "True" or "False" answer the SPARQL query should be an ASK query.

[User] who was vice president when jfk was president?

[Assistant] I will first search for the Wikidata item for "John F. Kennedy" to be sure of the entity identifier. Then I'll look for the property that links a president to their vice president (likely "vice president" or similar), verify its use, and build a SPARQL query that returns the vice president(s) for John F. Kennedy. I'll run intermediate queries to confirm identifiers and results. Now I'll search for the JFK entity.

[Tool]
Top 10 entity alternatives:
1. John F. Kennedy (wd:Q9696), also known as Jack Kennedy, JFK, J. F. Kennedy, JF Kennedy, John Fitzgerald "Jack" Kennedy, etc.: President of the United States from 1961 to 1963 / 35th President of the United States of America / 35th President of the United States of America / 35th President of the United States of America / has occupation anti-communist / has occupation naval officer / has occupation statesperson / has occupation politician / has occupation journalist / has occupation writer / is instance of human
2. John F. Kennedy (wd:Q240666), also known as CVN-79, PCU John F. Kennedy, USS John F. Kennedy: 2019 Gerald R. Ford-class aircraft carrier / is instance of pre-commissioning unit / is instance of supercarrier
3. MV John F. Kennedy (wd:Q29378914, matched via John F. Kennedy), also known as IMO 8643195, John F. Kennedy: Staten Island Ferry vessel. / is instance of ferry
4. John F. Kennedy (wd:Q130973914): sculpture by Evangelos Frudakis / is instance of visual artwork / is instance of sculpture
5. John F Kennedy (wd:Q22006430): is instance of Horse / is instance of horse / horse
6. John F. Kennedy (wd:Q28836957), also known as John Flanders Kennedy: American politician and member of the Georgia State Senate / has occupation politician / is instance of human
7. John F Kennedy (wd:Q42586306): cultural heritage monument in Aruba / is instance of cultural property / is instance of building
8. Rosa 'John F. Kennedy' (wd:Q83668459, matched via John F. Kennedy), also known as John F. Kennedy: is instance of rose cultivar / rose cultivar
9. John F. Kennedy (wd:Q56398105): is instance of version, edition or translation / book / book
10. John F. Kennedy (wd:Q60388208): is instance of written work / book by Robert M. Morris / book by Robert M. Morris

[Assistant] I'll search for properties related to "vice president" to find the correct property to use in the query.

[Tool]
Top 10 property alternatives:
1. head of state (wd:P35 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via president), also known as chief of state, emperor, governor, king, leader, etc.: official with the highest formal authority in a country/state / official with the highest formal authority in a country / official with the highest formal authority in a country / is subproperty of director / manager / is subproperty of manager/director / is subproperty of director/manager / is subproperty of chairperson
2. rector (wd:P1075 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via president), also known as chancellor, president, Rector (academia), university president, P1075: senior official in an educational institution. / senior official in an educational institution / is subproperty of director / manager / is subproperty of director/manager / is subproperty of manager/director / is subproperty of chairperson
3. chairperson (wd:P488 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via president), also known as chair, chairman, chairwoman, dean, headed by, etc.: presiding member of an organization, group, or body / presiding member of an organisation, group or body / presiding member of an organization, group or body / is subproperty of director / manager / is subproperty of significant person / is subproperty of director/manager / is subproperty of manager/director
4. head of government (wd:P6 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via president), also known as chancellor, executive power headed by, first minister, government headed by, governor, etc.: head of the executive power of this town, city, municipality, state, country, or other governmental body / head of the executive power of a town, city, municipality, state, country, or other governmental body / head of the executive power of a town, city, municipality, state, country, or other governmental body / is subproperty of director / manager / is subproperty of manager/director / is subproperty of director/manager / is subproperty of chairperson
5. position held by head of the organization (wd:P2388 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via president's position), also known as chairperson's postion, chief's position, directed by / from, headed by, head of the organization, etc.: position of the head of this item / position of the head of this item
6. party chief representative (wd:P210 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn), also known as communist party chief, Communist Party Secretary, party chief, party secretary, P210: chief representative of a party in an institution or an administrative unit (use qualifier to identify the party) / chief representative of a party in an institution or an administrative unit (use qualifier to identify the party)
7. general secretary (wd:P3975 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn), also known as leader, perpetual secretary, secretary general, P3975: leader of a political or international organization, sometimes below the chairperson (P488) / is subproperty of significant person / is subproperty of director / manager / is subproperty of manager/director / is subproperty of director/manager
8. office held by head of state (wd:P1906 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via head of state), also known as head of state, position held by head of state, state headed by, P1906: political office that is fulfilled by the head of state of this item
9. position holder (wd:P1308 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via incumbent), also known as incumbent, noble title holder, office holder, position held by, P1308: persons who hold and/or held the position / persons who hold and/or held an office
10. office held by head of government (wd:P1313 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via title of head of government), also known as head of government's office, office of head of government, position held by head of government, position of head of government, title of head of government, etc.: political office that is fulfilled by the head of the government of this item / political office that is fulfilled by the head of the government of this item

[Assistant] I'll search for the "vice president" property in Wikidata to find the correct property identifier to use in the query.

[Tool]
Top 10 property alternatives:
1. official residence (wd:P263 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via presidential mansion), also known as domicile, executive mansion, executive residence, gubernatorial mansion, home, etc.: the residence at which heads of government and other senior figures officially reside / is subproperty of residence
2. owner of (wd:P1830 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via owns property), also known as owns, owns property, shareholder of, P1830: entities owned by the subject / entities owned by the subject / entities owned by the subject
3. head of state (wd:P35 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via president), also known as chief of state, emperor, governor, king, leader, etc.: official with the highest formal authority in a country/state / official with the highest formal authority in a country / official with the highest formal authority in a country / is subproperty of director / manager / is subproperty of director/manager / is subproperty of manager/director / is subproperty of chairperson
4. rector (wd:P1075 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via president), also known as chancellor, president, Rector (academia), university president, P1075: senior official in an educational institution. / senior official in an educational institution / is subproperty of director / manager / is subproperty of director/manager / is subproperty of manager/director / is subproperty of chairperson
5. chairperson (wd:P488 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via president), also known as chair, chairman, chairwoman, dean, headed by, etc.: presiding member of an organization, group, or body / presiding member of an organisation, group or body / presiding member of an organization, group or body / is subproperty of director / manager / is subproperty of significant person / is subproperty of director/manager / is subproperty of manager/director
6. head of government (wd:P6 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via president), also known as chancellor, executive power headed by, first minister, government headed by, governor, etc.: head of the executive power of this town, city, municipality, state, country, or other governmental body / head of the executive power of a town, city, municipality, state, country, or other governmental body / head of the executive power of a town, city, municipality, state, country, or other governmental body / is subproperty of director / manager / is subproperty of manager/director / is subproperty of director/manager / is subproperty of chairperson
7. capital (wd:P36 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via government seat), also known as administrative capital, administrative center, administrative centre, administrative headquarters, administrative seat, etc.: location (city, municipality) of governmental seat of the country, or administrative territorial entity / seat of government of a country, province, state or other type of administrative territorial entity / city of governmental seat of the country, state or administrative subdivision
8. property (wd:P2306 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn), also known as allowed qualifier, P2306: qualifier to define a property constraint in combination with ... or to limit the scope of Q44292881 (wikidata statement)
9. Wikidata property (wd:P1687 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via property), also known as has property, main property, property, property for this item, P1687: main Wikidata property for this item / main Wikidata property for this item
10. headquarters location (wd:P159 as pq/wdtn/prv/pr/psv/pqv/ps/prn/p/psn/wdt/pqn, matched via principal office), also known as admin HQ, based in, garrison, head office location, head quarters, etc.: city or town where an organization's headquarters is or has been situated. Use P276 qualifier for specific building / specific location where an organisation's HQ is or has been located / specific location where an organisation's HQ is or has been located / is subproperty of significant place

[Assistant] I'll search for the entity "Vice President of the United States" to find the position item, and then find statements linking the president to vice presidents via "position held" or "has part" properties.

[Tool]
Top 10 entity alternatives:
1. Vice President of the United States (wd:Q11699), also known as President of the Senate, President of the United States Senate, United States Vice President, United States VP, USA VP, etc.: second-highest constitutional office in the United States / is instance of president of the senate / is instance of elective office / is instance of vice president
2. Vice President-elect of the United States (wd:Q106946815): elected candidate for vice president of the United States in the time before inauguration / is instance of position / is subclass of minister
3. Seal of the Vice President of the United States (wd:Q7440595, matched via Vice President of the United States seal), also known as the Vice President of the United States seal, Vice President of the United States seal: is instance of national seal
4. Acting Vice President of the United States (wd:Q4676868): is subclass of Vice President of the United States / is subclass of acting / is subclass of Acting
5. Living vice presidents of the United States (wd:Q60740651)
6. Second Lady or Gentleman of the United States (wd:Q280808, matched via husband of the Vice President of the United States), also known as husband of the Vice President of the United States, Second Gentleman of the United States, Second Lady, Second Lady of the United States, Second Spouse of the United States, etc.: spouse of the vice president of the United States / is subclass of Second Spouse / is instance of position
7. Office of the Vice President of the United States (wd:Q41160554), also known as Vice President's Ceremonial Office: U.S. federal government office of the vice president of the United States / is instance of government department / is instance of government agency
8. flag of the vice president of the United States (wd:Q5456903): flag used by U.S. vice presidents / is instance of flag
9. President of the United States (wd:Q11696, matched via the president of the United States), also known as American President, POTUS, President of America, President of the United States of America, President of the U.S., etc.: head of state and head of government of the United States of America / is instance of commander-in-chief / is instance of Head of government / is instance of head of government / is instance of elective office / is instance of head of state / is instance of president / is instance of President
10. Ancestral background of vice presidents of the United States (wd:Q130547975)

[Assistant] I'll list the "position held" (P39) statements for John F. Kennedy to find his term as President and its start/end dates. I'll call the list function constrained to the JFK entity and the P39 property.

[Tool]
Got 4 rows and 3 columns:
| subject                    | property                | object                                                              |
| -------------------------- | ----------------------- | ------------------------------------------------------------------- |
| John F. Kennedy (wd:Q9696) | position held (wdt:P39) | President of the United States (wd:Q11696)                          |
| John F. Kennedy (wd:Q9696) | position held (wdt:P39) | member of the United States House of Representatives (wd:Q13218630) |
| John F. Kennedy (wd:Q9696) | position held (wdt:P39) | President-elect of the United States (wd:Q1467287)                  |
| John F. Kennedy (wd:Q9696) | position held (wdt:P39) | United States senator (wd:Q4416090)                                 |

[Assistant] I'll run a SPARQL query that finds John F. Kennedy's presidential term (the P39 statement for "President of the United States") and any vice-presidential terms (P39 = "Vice President of the United States") whose start/end dates overlap with JFK's presidential term. This uses statement nodes and qualifiers (p/ps/pq). Now I'll execute the query.

[Tool]
Got 2 rows and 6 columns:
| vp                           | vpLabel                | vpStart                             | vpEnd                               | presStart                           | presEnd                             |
| ---------------------------- | ---------------------- | ----------------------------------- | ----------------------------------- | ----------------------------------- | ----------------------------------- |
| Richard Nixon (wd:Q9588)     | Richard Nixon (en)     | 1953-01-20T00:00:00Z (xsd:dateTime) | 1961-01-20T00:00:00Z (xsd:dateTime) | 1961-01-20T00:00:00Z (xsd:dateTime) | 1963-11-22T00:00:00Z (xsd:dateTime) |
| Lyndon B. Johnson (wd:Q9640) | Lyndon B. Johnson (en) | 1961-01-20T00:00:00Z (xsd:dateTime) | 1963-11-22T00:00:00Z (xsd:dateTime) | 1961-01-20T00:00:00Z (xsd:dateTime) | 1963-11-22T00:00:00Z (xsd:dateTime) |

[Assistant] I'll refine the overlap filter to require a strict overlap (vpEnd > presStart and vpStart < presEnd) so that outgoing vice presidents whose term ends exactly at the start of JFK's presidency (e.g., Richard Nixon) are excluded. I'll run the SPARQL query to get the vice president(s) who served during John F. Kennedy's presidential term. Now I will execute the query.

[Tool]
Got 1 row and 6 columns:
| vp                           | vpLabel                | vpStart                             | vpEnd                               | presStart                           | presEnd                             |
| ---------------------------- | ---------------------- | ----------------------------------- | ----------------------------------- | ----------------------------------- | ----------------------------------- |
| Lyndon B. Johnson (wd:Q9640) | Lyndon B. Johnson (en) | 1961-01-20T00:00:00Z (xsd:dateTime) | 1963-11-22T00:00:00Z (xsd:dateTime) | 1961-01-20T00:00:00Z (xsd:dateTime) | 1963-11-22T00:00:00Z (xsd:dateTime) |

[Assistant] The query shows Lyndon B. Johnson (wd:Q9640) as the vice president during JFK's presidency. I'll produce the final SPARQL query and answer.

[Tool] Stopping


PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
SELECT ?person ?personLabel ?start ?end WHERE {
  ?person p:P39 ?stmt .
  ?stmt ps:P39 wd:Q17989863 .
  OPTIONAL {
    ?stmt pq:P580 ?start .
  }
  OPTIONAL {
    ?stmt pq:P582 ?end .
  }
  FILTER ( ( ! bound( ?start ) || ?start <= "2011-12-31T23:59:59Z" ^^ xsd:dateTime ) && ( ! bound( ?end ) || ?end >= "2011-01-01T00:00:00Z" ^^ xsd:dateTime ) ) OPTIONAL {
    ?person rdfs:label ?personLabel .
    FILTER ( LANG( ?personLabel ) = "en" )
  }
}
ORDER BY ?start

Using entities:
Governor of Ohio (wd:Q17989863), also known as Governor of the State of Ohio, Ohio Governor

Using properties:
position held (wd:P39 as p/ps), also known as function, held position, holds position, job, office held, etc.
start time (wd:P580 as pq), also known as began, beginning, building date, effective, effectivity, etc.
end time (wd:P582 as pq), also known as abolished, cease date, cease operation, cease time, closed, etc.

Answer: Results: wd:Q465295 (Ted Strickland) — term start 2007-01-08, term end 2011-01-10; wd:Q69319 (John Kasich) — term start 2011-01-10, term end 2019-01-14. Therefore, Ted Strickland was governor at the very start of 2011 (until 2011-01-10) and John Kasich became governor on 2011-01-10 and served for the remainder of 2011.

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

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. Search for the 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. Execute intermediate queries to get feedback and to verify your assumptions. You may need to refine or rethink your current plan based on the query results and go back to step 2 if needed, possibly multiple times.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

You have access to the following knowledge graphs:
wikidata at http://localhost:7001 without notes

You are provided with the following notes across all knowledge graphs:
No notes available

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/
qlss: <https://qlever.cs.uni-freiburg.de/spatialSearch/
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 these rules:
- Explain your thought process before and after each step and function call.
- Do not just use or make up entity or property identifiers without verifying their existence in the knowledge graphs first.
- 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.
- Always execute your final SPARQL query before giving an answer to make sure it returns the expected results.
- 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.
- 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.
- 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.
- For questions with a "True" or "False" answer the SPARQL query should be an ASK query.

[User] who is governor of ohio 2011?

[Assistant] I will first find the Wikidata item for the U.S. state "Ohio" to ground the query. Then I'll look up the property or item that represents the office "Governor of Ohio" and query who held that office during the year 2011. I'll start by searching for the Ohio entity.

[Tool]
Top 10 entity alternatives:
1. Ohio (wd:Q1397), also known as Buckeye State, OH, Ohio, United States, State of Ohio, US-OH: state in the mid-west of the United States / is instance of state of the United States / state of the United States of America / is instance of U.S. state
2. Ohio (wd:Q944935), also known as Ohio, IL, Ohio, Illinois: village in Bureau County, Illinois, United States / is instance of village of Illinois
3. Ohio (wd:Q927274), also known as Ohio, New York, Ohio, NY: is instance of town in the United States / is instance of town of New York / town in New York, United States
4. Ohio (wd:Q2137506): protest song written and composed by Neil Young / is instance of single / is instance of song
5. Ohio (wd:Q7080727): song from the 1953 Broadway musical "Wonderful Town" / is instance of musical work/composition
6. Ohio (wd:Q21197484), also known as Ohio, Missouri, Ohio, MO: human settlement in St. Clair County, Missouri, United States / is instance of unincorporated community in the United States
7. USS Turquoise (wd:Q23003188, matched via Ohio), also known as Entropy, Esmeraldas, Kallisto, Maramichi, Nueve de Octobre, etc.: private motor yacht, later a patrol yacht for the U.S. Navy and Ecuadorian Navy / is instance of submarine chaser / is instance of patrol yacht / is instance of motor yacht
8. Ohio (wd:Q24260758), also known as Ohio, Texas, Ohio, TX: is instance of unincorporated community in the United States / human settlement in United States of America
9. Ohio (wd:Q48849126), also known as Ohio, Kansas: place in Kansas, United States / is instance of locale
10. Ohio (wd:Q125256170): tugboat built in 2018 / is instance of tug

[Assistant] Next I'll search for the Wikidata item representing the office "Governor of Ohio" to use as the office held (P39) value in the query.

[Tool]
Top 10 entity alternatives:
1. Governor of Ohio (wd:Q17989863), also known as Governor of the State of Ohio, Ohio Governor: head of state and of government of the U.S. state of Ohio / is subclass of head of government / is subclass of Head of government / is instance of elective office / is subclass of head of state / is instance of position / is subclass of governor
2. Lieutenant Governor of Ohio (wd:Q1660669), also known as Ohio Lieutenant Governor: is subclass of lieutenant governor / political office in Ohio, USA / is instance of public office
3. Allen, William (governor of Ohio) (wd:Q115677191): article in The Biographical Dictionary of America / is instance of biographical article
4. Cabinet of the Governor of Ohio (wd:Q5015582): is subclass of cabinet
5. family of the Governor of Ohio (wd:Q111903237), also known as First Family of Ohio: is instance of First Family
6. Ohio State Office of the Governor (wd:Q33121995): government organization in Columbus, United States / is instance of government department / is instance of government agency
7. Portrait of Mordecai Bartley, Governor of Ohio (wd:Q131402143): painting by Richard T. Clarke (1820-1885) / is instance of painting
8. Portrait of William Bebb, Governor of Ohio (wd:Q131839779): is instance of painting
9. Doctor Edward Tiffin, first governor of Ohio. (wd:Q52529336): scientific article published in September 1947 / scientific article published in September 1947 / scientific article published in September 1947 / is instance of scholarly article / is instance of academic article
10. Portrait of Thomas W. Bartley, Governor of Ohio (wd:Q131402154): painting by John Henry Witt / is instance of painting

[Assistant] I'll check the Governor of Ohio item to confirm its use with people holding that office (property P39).

[Tool]
Got 166 rows and 3 columns, showing the first 10 rows below:
| subject                         | property                            | object                                                                   |
| ------------------------------- | ----------------------------------- | ------------------------------------------------------------------------ |
| Governor of Ohio (wd:Q17989863) | instance of (wdt:P31)               | position (wd:Q4164871)                                                   |
| Governor of Ohio (wd:Q17989863) | country (wdt:P17)                   | United States (wd:Q30)                                                   |
| Governor of Ohio (wd:Q17989863) | Commons category (wdt:P373)         | Governors of Ohio                                                        |
| Governor of Ohio (wd:Q17989863) | image (wdt:P18)                     | <http://commons.wikimedia.org/wiki/Special:FilePath/Gov-Mike-DeWine.jpg> |
| Governor of Ohio (wd:Q17989863) | part of (wdt:P361)                  | family of the Governor of Ohio (wd:Q111903237)                           |
| Governor of Ohio (wd:Q17989863) | subclass of (wdt:P279)              | head of state (wd:Q48352)                                                |
| Governor of Ohio (wd:Q17989863) | Freebase ID (wdt:P646)              | /m/04x_nbd                                                               |
| Governor of Ohio (wd:Q17989863) | inception (wdt:P571)                | 1803-03-03T00:00:00Z (xsd:dateTime)                                      |
| Governor of Ohio (wd:Q17989863) | official website (wdt:P856)         | <http://governor.ohio.gov>                                               |
| Governor of Ohio (wd:Q17989863) | applies to jurisdiction (wdt:P1001) | Ohio (wd:Q1397)                                                          |
| ...                             | ...                                 | ...                                                                      |

[Assistant] I'll run a SPARQL query to find people who held the office "Governor of Ohio" (wd:Q17989863) with term start/end qualifiers that overlap the year 2011. I will retrieve the person IRIs, labels (English), and the term start/end qualifiers to confirm coverage of 2011.

[Tool]
Got 2 rows and 4 columns:
| person                      | personLabel         | start                               | end                                 |
| --------------------------- | ------------------- | ----------------------------------- | ----------------------------------- |
| Ted Strickland (wd:Q465295) | Ted Strickland (en) | 2007-01-08T00:00:00Z (xsd:dateTime) | 2011-01-10T00:00:00Z (xsd:dateTime) |
| John Kasich (wd:Q69319)     | John Kasich (en)    | 2011-01-10T00:00:00Z (xsd:dateTime) | 2019-01-14T00:00:00Z (xsd:dateTime) |

[Assistant]
I will now finalize by providing the final SPARQL query I used and the answer extracted from its results.

Before I call the final answer function, here's a concise recap of my step-by-step reasoning and what I did (including explanations before and after each function call I made):

1) I searched for the Wikidata item for the U.S. state "Ohio" to ensure I use the correct entity.
   - Before the call: I explained I will search for "Ohio".
   - Call: search_entity(kg=wikidata, query="Ohio")
   - After the call: The search returned wd:Q1397 as the Ohio state entity (Ohio, the U.S. state). This confirmed the correct item for the jurisdiction.

2) I searched for the Wikidata item for the office "Governor of Ohio".
   - Before the call: I explained I will search for the governor office.
   - Call: search_entity(kg=wikidata, query="Governor of Ohio")
   - After the call: The search returned wd:Q17989863 as the Governor of Ohio item. This is the office used in P39 statements.

3) I inspected the Governor of Ohio item to confirm relevant properties and that it applies to Ohio.
   - Before the call: I explained I would list triples for wd:Q17989863 to check properties and jurisdiction.
   - Call: list(kg=wikidata, subject="wd:Q17989863")
   - After the call: The item confirmed applies to jurisdiction Ohio (wd:Q1397) and is appropriate for querying P39 (position held) statements.

4) I ran a SPARQL SELECT query to find people with the position Governor of Ohio (wd:Q17989863) whose term start/end qualifiers overlap the calendar year 2011. I requested the person IRIs, English labels, and the term start (P580) and term end (P582) qualifiers.
   - Before the call: I explained I would query persons with P39 = Governor of Ohio and filter by date overlap with 2011.
   - Call: execute(...) with the SPARQL shown below.
   - After the call: The query returned two people:
     - wd:Q465295 — Ted Strickland — start 2007-01-08 — end 2011-01-10
     - wd:Q69319  — John Kasich    — start 2011-01-10 — end 2019-01-14
     These results show Ted Strickland was governor until 2011-01-10 and John Kasich began his term on 2011-01-10, so both held the office during parts of 2011.

I will now provide the final SPARQL query I executed and the concise answer based on its results.

[Tool] Stopping