PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
SELECT ?currency ?currencyLabel WHERE {
  wd:Q244 wdt:P38 ?currency .
  OPTIONAL {
    ?currency rdfs:label ?currencyLabel .
    FILTER ( LANG( ?currencyLabel ) = "en" )
  }
}

The currency to take to Barbados is the Barbadian dollar (wd:Q194351).

[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 http://amur:7001

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] what currency to take to barbados?

[Assistant]
Let's break down the question:

1. The user wants to know what currency to take to Barbados.
2. This means we need to find the official currency used in Barbados.
3. First, I will search for the entity "Barbados" in Wikidata to get its identifier.
4. Then, I will search for the property related to "currency" to find the relevant property identifier.
5. Finally, I will construct a SPARQL query to find the currency of Barbados.

Let's start by searching for the entity "Barbados".

[Tool]
Top 10 entity alternatives:
1. Barbados, also known as 🇧🇧, BAR, Barbadoes, bb, BB (wd:Q244): island nation in the Caribbean
2. Barbados (wd:Q807306): Swedish dansband
3. Barbados (wd:Q4858589): single by Typically Tropical
4. Barbados (wd:Q4858586): musical composition by Charlie Parker
5. Barbados (wd:Q10426260): 1995 studio album by Barbados
6. Barbados (wd:Q16950300): song
7. Barbados (wd:Q2649101): plantation in Surinam
8. Barbados (wd:Q98687855): jazz blues by Charlie Parker
9. Barbados (wd:Q74608067): scientific article published on 01 June 1987
10. Barbados (wd:Q59508554): painting by J.E.H. MacDonald

[Assistant]
The correct entity for the country Barbados is wd:Q244.

Next, I need to find the property related to "currency" to determine which property links a country to its official currency. I will search for the property "currency" in Wikidata.

[Tool]
Top 10 property alternatives:
1. currency, also known as base currency, used money (wd:P38 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): currency used by item, uses
2. ISO 4217 code, also known as currency code, ISO 4217, ISO 4217 alphabetic code, ISO currency code (wd:P498 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): identifier for a currency per ISO 4217
3. price, also known as cost, exchange rate, list price, MSRP, published price (wd:P2284 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): published price listed or paid for a product (use with unit of currency)
4. prize money, also known as money, purse, value (wd:P2121 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): amount in a specific currency
5. cash (wd:P2232 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): the value of cash and securities held by a state government
6. currency symbol description (wd:P489 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): item with description of currency symbol, notation
7. face value, also known as coin value, numeric value of coin, value of coin (wd:P3934 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): value printed on a coin, stamp or banknote by the issuing authority
8. quantity, also known as amount, total number, total, qty, occurrences (wd:P1114 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): number of instances of this subject in the universe of the subje...e actual number of instances in Wikidata may be lower or higher)
9. item of property constraint, also known as claim value, value, qid, property value, item qualifier (wd:P2305 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): qualifier to define a property constraint in combination with "property constraint" (P2302)
10. numeric value, also known as numerical value, value (wd:P1181 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): numerical value of a number, a mathematical constant, or a physical constant

[Assistant]
The most relevant property for the currency used by a country is "currency" (wd:P38).

Now, I will construct a SPARQL query to find the currency (wd:P38) of Barbados (wd:Q244). I will also try to get the label of the currency for better readability, but the main result will be the IRI.

Here is the query I will use:
```
SELECT ?currency ?currencyLabel WHERE {
  wd:Q244 wdt:P38 ?currency .
  OPTIONAL { ?currency rdfs:label ?currencyLabel . FILTER(LANG(?currencyLabel) = "en") }
}
```
Now, I will execute this query.

[Tool]
Got 1 row and 2 columns:
| currency                      | currencyLabel         |
| ----------------------------- | --------------------- |
| Barbadian dollar (wd:Q194351) | Barbadian dollar (en) |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The answer is correct and complete. The SPARQL query retrieves the currency used in Barbados (wd:Q244) via the property 'currency' (wd:P38), and also optionally fetches the English label for the currency. The result correctly identifies the Barbadian dollar (wd:Q194351) as the currency to take to Barbados. The query follows all the required rules, including returning the IRI of the currency and using optional for the label.


PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
SELECT ?inceptionYear WHERE {
  wd:Q650840 wdt:P571 ?inception .
  BIND( YEAR( ?inception ) AS ?inceptionYear )
}

Got 1 row and 1 column:
| inceptionYear  |
| -------------- |
| 1883 (xsd:int) |

The Philadelphia Phillies began in 1883.

[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 http://amur:7001

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] what year did the phillies begin?

[Assistant]
Let's break down the question:

1. The user is asking about the year the Philadelphia Phillies (a Major League Baseball team) began.
2. We need to identify the correct entity for the "Philadelphia Phillies" and find the property that represents the "inception" or "founding year".

Step 1: Search for the entity "Philadelphia Phillies" in Wikidata.

[Tool]
Top 10 entity alternatives:
1. Philadelphia Phillies, also known as Phillies, Quakers, Phils, Philadelphia Quakers (wd:Q650840): baseball team in Philadelphia, Pennsylvania, United States, Major League Baseball team
2. Philadelphia Phillies, also known as Philadelphia Quakers, Phillies, Quakers, Phils (wd:Q650840): baseball team in Philadelphia, Pennsylvania, United States, Major League Baseball team
3. Philadelphia Phillies (wd:Q7182765): professional American football team from 1902
4. history of the Philadelphia Phillies, also known as Philadelphia Phillies history, the Philadelphia Phillies history (wd:Q5870209): aspect of history
5. WikiProject Philadelphia Phillies (wd:Q21830603): Wikimedia subject-area collaboration
6. 2018 Philadelphia Phillies season (wd:Q47010509): Major League Baseball season
7. 2009 Philadelphia Phillies season (wd:Q3466492): Major League Baseball season
8. 2022 Philadelphia Phillies season (wd:Q108179426): Major League Baseball season
9. 2010 Philadelphia Phillies season (wd:Q3467975): Major League Baseball season
10. 2021 Philadelphia Phillies season (wd:Q104859453): major League Baseball season

[Assistant]
The correct entity for the Philadelphia Phillies baseball team is wd:Q650840.

Next, I need to find the property that represents the "inception" or "founding year" of an organization. I will search for properties related to "inception" or "founding" for this entity.

[Tool]
Top 10 property alternatives:
1. inception, also known as initial release date, founded in, founded on, founded on date, founding date (wd:P571 as p/wdt): time when an entity begins to exist; for date of official opening use P1619, start time
2. part of, also known as of, within, system of, subsystem of, subgroup of (wd:P361 as p/wdt): object of which the subject is a part (if this subject is alread... of "has part" (P527, see also "has parts of the class" (P2670))
3. logo image, also known as masthead, wordmark, trademark, trade mark, sign (wd:P154 as p/wdt): graphic mark or emblem commonly used by commercial enterprises, organizations and products, icon
4. sport, also known as play, plays, sport played, sports (wd:P641 as p/wdt): sport that the subject participates or participated in or is associated with
5. Instagram username, also known as IG username, www.instagram.com, urinsta, ufinsta, Insta ID (wd:P2003 as p/wdt): item's username on Instagram, website username or ID
6. named after, also known as toponym, namesake, named in honor of, named for, etymology (wd:P138 as p/wdt): entity or event that inspired the subject's name, or namesake (i...fier "applies to name" (P5168) can be used to indicate which one
7. 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)
8. X (Twitter) username, also known as twitter.com/, X username, X handle, x.com/, X account (wd:P2002 as p/wdt): username on X (formerly Twitter); do not include the '@' symbol, website username or ID
9. official website, also known as site (official), home page, site official, URL, URL (official) (wd:P856 as p/wdt): URL of the official page of an item (current or former). Usage: ...but see the "Hijacked or dead websites" section of the Talk page, URL
10. YouTube channel ID, also known as YouTube account, YouTube channel, YouTube channel identifier, official YouTube channel, youtube.com/channel/ (wd:P2397 as p/wdt): ID of the YouTube channel of a person or organisation (not to be...f the channel) The ID can also be used for music.youtube.com IDs, website username or ID

No other items found

[Assistant]
The property "inception" (wdt:P571) is used to indicate the time when an entity begins to exist, which matches the user's request for the year the Phillies began.

Now, I will construct a SPARQL query to retrieve the inception year of the Philadelphia Phillies (wd:Q650840), including the year only.

[Tool]
Got 1 row and 1 column:
| inceptionYear  |
| -------------- |
| 1883 (xsd:int) |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query correctly retrieves the inception year of the Philadelphia Phillies using the appropriate entity (wd:Q650840) and property (wdt:P571). The answer matches the expected result, and the query follows all the required rules. No further refinement is necessary.


PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
SELECT ?actor WHERE {
  wd:Q12206942 p:P725 ?statement .
  ?statement ps:P725 ?actor .
  ?statement pq:P407 wd:Q1860 .
}
LIMIT 10

James Earl Jones (wd:Q203960) voiced Darth Vader in the original Star Wars movies (English version).

[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 http://amur:7001

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 voiced darth vader in the original star wars movies?

[Assistant]
Let's break down the question:

1. The user wants to know who voiced Darth Vader in the original Star Wars movies.
2. We need to identify:
   - The entity for "Darth Vader".
   - The property for "voiced by".
   - The entity or entities for the "original Star Wars movies" (likely Episodes IV, V, and VI).
3. We need to find the actor who provided the voice for Darth Vader in those movies.

First, I'll search for the entity "Darth Vader" in Wikidata.

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

[Assistant]
The correct entity for Darth Vader (the character) is wd:Q12206942.

Next, I need to find the property for "voiced by" to identify the actor who provided the voice for Darth Vader. I'll search for the property "voiced by" in Wikidata.

[Tool]
Top 10 property alternatives:
1. voice actor, also known as voice actors, voice dubber, voice actress, voice actresses, voiced by (wd:P725 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): performer of a spoken role in a creative work such as animation,... (P453) as qualifier] [use "cast member" (P161) for live acting], film crew member, cast member
2. Behind The Voice Actors person ID, also known as behindthevoiceactors.com person ID, BTVA person ID, BTVA ID (wd:P5007 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): identifier of a person on the website Behind The Voice Actors
3. Behind The Voice Actors character ID, also known as Behind The Voice Actors character identifier, BTVA character ID, BTVA character identifier (wd:P5107 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): identifier of a character from the Behind The Voice Actors website
4. used by, also known as armiger, user, played by, of (wd:P1535 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): item or concept that makes use of the subject (use sub-properties when appropriate)
5. depicted by, also known as acted by, shown in, seen in, portrayed by, played by (wd:P1299 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): object depicting this subject (object being creative works such as books, films, paintings)
6. performer, also known as actor, sung by, singer, recording by, recorded by (wd:P175 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): actor, musician, band or other performer associated with this role or musical work, contributor to the creative work or subject
7. Behind The Voice Actors short ID, also known as BTVA short ID (wd:P7318 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): identifier of a short on the website Behind The Voice Actors
8. Behind The Voice Actors franchise ID, also known as BTVA franchise ID (wd:P5382 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): identifier of a franchise in Behind the Voice Actors
9. Behind The Voice Actors TV show ID, also known as BTVA TV show ID (wd:P5387 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): identifier of a television show on the website Behind The Voice Actors
10. Behind The Voice Actors film ID, also known as Behind The Voice Actors movie ID, BTVA movie ID (wd:P5384 as psn/prn/pqv/psv/wdt/prv/pq/pr/pqn/wdtn/p/ps): identifier of a film on the website Behind The Voice Actors

[Assistant]
The correct property for "voiced by" is "voice actor" (wdt:P725).

Now, I need to focus on the "original Star Wars movies". These are generally considered to be:
- Star Wars: Episode IV – A New Hope (1977)
- Star Wars: Episode V – The Empire Strikes Back (1980)
- Star Wars: Episode VI – Return of the Jedi (1983)

I'll search for these movies in Wikidata to get their entity IDs.

[Tool]
Top 10 entity alternatives:
1. Star Wars: Episode IV – A New Hope, also known as 1977 Star Wars, A New Hope, Star Wars, Star Wars: A New Hope, Star Wars: Episode IV (wd:Q17738): 1977 film directed by George Lucas
2. Star Wars XXX: A Porn Parody, also known as Star Wars XXX: A Porn Parody Episode IV - A New Hole, Star Wars XXX - A Porn Parody (wd:Q15848933): 2012 film by Axel Braun
3. Star Wars: From the Adventures of Luke Skywalker, also known as 1976 Star Wars, Star Wars: A New Hope (wd:Q6272668): 1976 Star Wars novel by Alan Dean Foster
4. Episode IV: A New Hope (wd:Q114500213): episode of Reaper (S2 E1)
5. Star Wars: A New Hope (wd:Q124372359): 1995 Del Rey edition
6. EFOSC2 episode IV: a new hope (wd:Q68123117): scientific article published in January 2008
7. Star Wars-style holograms: a new hope? (wd:Q59038525): scientific article published in Nature
8. William Shakespeare's Star Wars: Verily, a New Hope (wd:Q18155858): play written by Ian Doescher
9. Star Wars: Episode VII – The Force Awakens, also known as Star Wars 7, Force Awakens, The Force Awakens, TFA, Star Wars VII (wd:Q6074): 2015 film directed by J. J. Abrams
10. Star Wars: Episode II – Attack of the Clones, also known as Attack of the Clones, Star Wars: Episode II -- Attack of the Clones (wd:Q181069): 2002 American epic space opera film directed by George Lucas

[Tool]
Top 10 entity alternatives:
1. Star Wars: Episode V – The Empire Strikes Back, also known as Star Wars 5, The Empire Strikes Back, Star Wars V, Star Wars Episode V: The Empire Strikes Back, Star Wars: Episode V The Empire Strikes Back (wd:Q181795): 1980 American epic space opera film directed by Irvin Kershner
2. Star Wars: The Empire Strikes Back, also known as 1992 The Empire Strikes Back (wd:Q54329): 1992 video game
3. Star Wars/The Empire Strikes Bac...undtrack from the Motion Picture (wd:Q7601131): 1980 soundtrack album by John Williams, London Symphony Orchestra
4. Star Wars: The Empire Strikes Back (wd:Q54327): 1985 video game
5. Super Star Wars: The Empire Strikes Back, also known as Super Empire Strikes Back (wd:Q54330): 1993 video game
6. Classic Star Wars: The Empire Strikes Back (wd:Q3778745): 1997 novel
7. Star Wars: Episode VII – The Force Awakens, also known as Star Wars 7, Force Awakens, The Force Awakens, TFA, Star Wars VII (wd:Q6074): 2015 film directed by J. J. Abrams
8. Star Wars: Episode VIII – The Last Jedi, also known as Last Jedi, Star Wars 8, Star Wars Episode VIII, Star Wars: Episode VIII, Star Wars: The Last Jedi (wd:Q18486021): 2017 film directed by Rian Johnson
9. Impact factor wars: Episode V--the empire strikes back (wd:Q83421448): scientific article published on 01 March 2009
10. Star Wars: Episode VI – Return of the Jedi, also known as Star Wars: Episode VI Return of the Jedi, Return of the Jedi (wd:Q181803): 1983 film directed by Richard Marquand

[Tool]
Top 10 entity alternatives:
1. Star Wars: Episode VI – Return of the Jedi, also known as Star Wars: Episode VI Return of the Jedi, Return of the Jedi (wd:Q181803): 1983 film directed by Richard Marquand
2. Return of the Jedi, also known as Star Wars Episode VI: Return of the Jedi (wd:Q4350761): soundtrack
3. Star Wars: Episode VIII – The Last Jedi, also known as Last Jedi, Star Wars 8, Star Wars Episode VIII, Star Wars: Episode VIII, Star Wars: The Last Jedi (wd:Q18486021): 2017 film directed by Rian Johnson
4. Return of the Jedi: Death Star Battle, also known as Star Wars: Return of the Jedi: Death Star Battle, Star Wars: Return of the Jedi - Death Star Battle (wd:Q54331): 1983 video game
5. Star Wars: Return of the Jedi, also known as Return of the Jedi (wd:Q54334): 1984 arcade video game
6. Super Star Wars: Return of the Jedi, also known as Super Return of the Jedi (wd:Q54335): 1994 video game
7. Star Wars: Return of the Jedi: Ewok Adventure (wd:Q54332): cancelled Star Wars video game
8. Carotid wars episode VI: Return of the standard (wd:Q38138851): scientific article
9. Star Wars: Episode III – Revenge of the Sith, also known as Star Wars Episode III, Star Wars: Episode III -- Revenge of the Sith, Star Wars: Revenge of the Sith (wd:Q42051): 2005 American epic space opera film directed by George Lucas
10. Star Wars: Episode II – Attack of the Clones, also known as Attack of the Clones, Star Wars: Episode II -- Attack of the Clones (wd:Q181069): 2002 American epic space opera film directed by George Lucas

[Assistant]
The entity IDs for the original Star Wars movies are:
- Star Wars: Episode IV – A New Hope: wd:Q17738
- Star Wars: Episode V – The Empire Strikes Back: wd:Q181795
- Star Wars: Episode VI – Return of the Jedi: wd:Q181803

Now, I need to find who voiced Darth Vader (wd:Q12206942) in these three movies. The "voice actor" property (wdt:P725) should be used, and I need to ensure the connection is specific to these films.

I will check how the "voice actor" property is used for Darth Vader, possibly with qualifiers for the specific films. I'll list triples for Darth Vader with the "voice actor" property.

[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) |

[Tool]
Got 637 rows and 3 columns, showing the first 10 rows below:
| subject                    | property                                        | object                                                                                |
| -------------------------- | ----------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------- |
| Darth Vader (wd:Q12206942) | instance of (wdt:P31)                           | literary character (wd:Q3658341)                                                                                |
| Darth Vader (wd:Q12206942) | occupation (wdt:P106)                           | knight (wd:Q102083)                                                                                |
| Darth Vader (wd:Q12206942) | sex or gender (wdt:P21)                         | male (wd:Q6581097)                                                                                |
| Darth Vader (wd:Q12206942) | given name (wdt:P735)                           | Anakin (wd:Q112648409)                                                                                |
| Darth Vader (wd:Q12206942) | Commons category (wdt:P373)                     | Darth Vader                                                                                |
| Darth Vader (wd:Q12206942) | image (wdt:P18)                                 | <http://commons.wikimedia.org/wiki/Special:FilePath/Anime%20Friends%202016%20%2828204286635%29%20%28no%20background%29.png> |
| Darth Vader (wd:Q12206942) | country of citizenship (wdt:P27)                | Galactic Republic (wd:Q733195)                                                                                |
| Darth Vader (wd:Q12206942) | family name (wdt:P734)                          | Skywalker (wd:Q20088958)                                                                                |
| Darth Vader (wd:Q12206942) | inception (wdt:P571)                            | 1977-01-01T00:00:00Z (xsd:dateTime)                                                                                |
| Darth Vader (wd:Q12206942) | languages spoken, written or signed (wdt:P1412) | English (wd:Q1860)                                                                                |
| ...                        | ...                                             | ...                                                                                |

[Tool] Got no rows and 3 columns

[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 |

[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                           |

[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                           |

[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                           |

[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]
From the detailed statement breakdown, James Earl Jones (wd:Q203960) is listed as the English voice actor for Darth Vader. However, the statements do not specify the films directly as qualifiers. Since the question asks specifically about the original Star Wars movies, and James Earl Jones is widely known as the English voice actor for Darth Vader in those films, this matches the expected answer.

To ensure completeness, I will write a SPARQL query that retrieves the English voice actor for Darth Vader, returning the actor's IRI and optional label.

Here is the final SPARQL query and answer.

[Tool] Stopped generation process

[User]
Feedback (status=refine):
The answer correctly identifies James Earl Jones as the voice actor for Darth Vader in the original Star Wars movies, which is the expected answer. However, the SPARQL query returns multiple actors, including Philippe Catoire and Jean-Louis Faure, who are not relevant to the original English-language version but likely voiced the character in dubbed versions. The query attempts to filter for English language using an OPTIONAL clause, but this is not sufficient to restrict the results to only the English-language voice actor. The query should be refined to strictly filter for the English-language voice actor, possibly by using a FILTER or by making the language qualifier mandatory rather than optional. This will ensure only James Earl Jones is returned, matching the user's question more precisely.

[Assistant]
Thank you for the feedback. You are correct: the previous query used OPTIONAL for the language qualifier, which does not strictly filter for the English-language voice actor. To ensure only the English-language voice actor is returned, I will make the English language qualifier (wd:Q1860) mandatory in the WHERE clause.

Here is my revised approach:
- Only include statements about Darth Vader's voice actor where the language qualifier is English (wd:Q1860).
- This will exclude voice actors for other languages and ensure only James Earl Jones is returned.

Here is the improved SPARQL query:

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query correctly identifies the voice actor (James Earl Jones) for Darth Vader in the original Star Wars movies, specifically for the English language version. The query uses the appropriate properties and entities, and the result matches the expected answer. No further refinement is necessary.