What is {spouse} of {Cheryl Tiegs} that is {start time} is {1981-1-1} ?
Who is the husband of Cheryl Tiegs in the year 1981
Who  is married to Cheryl Tiegs in the year 1981?
SELECT ?j WHERE { ?v property:start_time ?a . FILTER ( CONTAINS ( YEAR ( ?a ) , '1981' ) ) . resource:Cheryl_Tiegs property:spouse ?v . ?v property:spouse ?j }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q2408009> .
?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> <1981-1-1>
} 

SELECT ?obj WHERE { wd:Q2408009 p:P26 ?s . ?s ps:P26 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1981')) }