what is the {start time} for {Sylvester Stallone} has {spouse} as {Sasha Czack} ?
When did Sylvester Stallone marry Sasha Czack?
When was Sasha Czack became spouse of Sylvester Stallone?
SELECT ?r WHERE { resource:Sylvester_Stallone property:spouse ?o . ?o property:start_time ?r . ?o property:spouse resource:Sasha_Czack }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q40026> .
?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> <http://wikidata.dbpedia.org/resource/Q22977790> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q40026 p:P26 ?s . ?s ps:P26 wd:Q22977790 . ?s pq:P580 ?value}