what is the {start time} for {Lucas Cranach the Elder} has {work location} as {Vienna} ?
During what time did Lucas Cranach, the Elder, work in Vienna?
What timeframe did Lucas Cranach, the Elder, work in Vienna?
SELECT ?c WHERE { ?v property:work_location resource:Vienna . resource:Lucas_Cranach_the_Elder property:work_location ?v . ?v property:start_time ?c }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q191748> .
?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/Q1741> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q191748 p:P937 ?s . ?s ps:P937 wd:Q1741 . ?s pq:P580 ?value}