Question: Who is the spouse of Mary Astor since 1928-1-1?
Paraphrase: Who has been married to Mary Astor since January 1, 1928?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q232109 p:P26 ?s . ?s ps:P26 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1928')) }