When did John Steinbeck get married to Elaine Anderson Steinberg, and when did it end?
SELECT ?value1 ?value2 WHERE { wd:Q39212 p:P26 ?s . ?s ps:P26 wd:Q5353161 . ?s pq:P582 ?value1 . ?s pq:P580 ?value2 }
john steinbeck: Q39212 elaine anderson steinbeck: Q5353161