what is the {end time} for {Lee de Forest} has {spouse} as {Nora Stanton Blatch Barney} ?
What year did Lee de Forest end his marriage with Nora Stanton Blatch Barney?
When did Lee de Forest divorce from Nora Stanton Blatch Barney?
SELECT ?y WHERE { ?n property:end_time ?y . resource:Lee_de_Forest property:spouse ?n . ?n property:spouse resource:Nora_Stanton_Blatch_Barney }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q354863> .
?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/Q17676> .
?statement <http://www.wikidata.org/entity/P582> ?value. 
} 

SELECT ?value WHERE { wd:Q354863 p:P26 ?s . ?s ps:P26 wd:Q17676 . ?s pq:P582 ?value}