Question: To whom did Katharine Hepburn get married and when did it end?
Paraphrase: To whom did Katharine Hepburn get married and when did it end?
SPARQL (Wikidata): SELECT ?value1 ?obj WHERE { wd:Q56016 p:P451 ?s . ?s ps:P451 ?obj . ?s pq:P582 ?value1 . }