what is the {point in time} for {Odilon Redon} has {work location} as {Amsterdam} ?
Odilon Redo worked in Amsterdam during which time span?
During which time did Odilon Redo work at Amsterdam?
SELECT ?c WHERE { ?s property:work_location resource:Amsterdam . resource:Odilon_Redon property:work_location ?s . ?s property:point_in_time ?c }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q154349> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P937> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q727> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q154349 p:P937 ?s . ?s ps:P937 wd:Q727 . ?s pq:P585 ?value}