Question: who is partner of Amy Winehouse that has start time is 2010-1-1 ?
Paraphrase: Who was Amy Winehouse partner on Jan 1st 2010
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q15897 p:P451 ?s . ?s ps:P451 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'2010')) }