Question: what is spouse of charlie parker that is end time is 1955-3-12?
Paraphrase: What's Charlie Parker's wife's name who died in 1955?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q103767 p:P26 ?s . ?s ps:P26 ?obj . ?s pq:P582 ?x filter(contains(YEAR(?x),'1955')) }