Question: When did Sidney Poitier receive a Kennedy Center Honors reward?
Paraphrase: At what point in time did Sidney Poitier receive a Kennedy Center Honors reward?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q104049 p:P166 ?s . ?s ps:P166 wd:Q1738793 . ?s pq:P585 ?value}