Question: What is the role of Darth Vader who is performed by James Earl Jones ?
Paraphrase: What kind of role did James Earl Jones have when he played Darth Vader?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q12206942 p:P175 ?s . ?s ps:P175 wd:Q203960 . ?s pq:P642 ?value}