Question: Who did Elizabeth Cady Stanton marry on May 1,1840?
Paraphrase: On May 1, 1840 Whom did Elizabeth Cady Stanton married?.
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q465335 p:P26 ?s . ?s ps:P26 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1840')) }