What is {spouse} of {Lawrence Kasdan} that is {start time} is {1971-0-0} ?
In the year 1971, who was Lawrence Kasdan married to?
Who was Lawrence Kasdan's spouse in 1971?
SELECT ?r WHERE { resource:Lawrence_Kasdan property:spouse ?r . FILTER ( CONTAINS ( YEAR ( ?t ) , '1971' ) ) . ?r property:start_time ?t . ?r property:spouse ?r }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q240872> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P26> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P580> <1971-0-0>
} 

SELECT ?obj WHERE { wd:Q240872 p:P26 ?s . ?s ps:P26 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1971')) }