What is {spouse} of {Al Gore} that is {start time} is {1970-0-0} ?
Who was Al Gore married to in 1970?
Who was Al Gore's spouse beginning in 1970?
SELECT ?l WHERE { ?y property:start_time ?h . ?y property:spouse ?l . FILTER ( CONTAINS ( YEAR ( ?h ) , '1970' ) ) . resource:Al_Gore property:spouse ?y }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q19673> .
?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> <1970-0-0>
} 

SELECT ?obj WHERE { wd:Q19673 p:P26 ?s . ?s ps:P26 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1970')) }