Question: When did Mikhail Baryshnikov become a citizen of Canada?
Paraphrase: About the citizenship of Mikhail Baryshnikov, did he become a citizen of Canada?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q295420 p:P27 ?s . ?s ps:P27 wd:Q16 . ?s pq:P580 ?value}