what is the {start time} for {Melanie Griffith} has {spouse} as {Steven Bauer} ?
What is the date of Melanie Griffith's marriage to Steven Bauer?
When was Melanie Griffith married to Steven Bauer?
SELECT ?r WHERE { resource:Melanie_Griffith property:spouse ?r . ?r property:spouse resource:Steven_Bauer . ?r property:start_time ?r }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q176455> .
?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/Q705477> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q176455 p:P26 ?s . ?s ps:P26 wd:Q705477 . ?s pq:P580 ?value}