What is {position held} of {George VI} and {start time}
What position was held by George VI and when did he start in that position?
What position was held by George VI and when did he begin in that position?
SELECT ?a ?c WHERE { ?e property:position_held ?c . ?e property:start_time ?a . . resource:George_VI property:position_held ?e }
select distinct ?dataprop1 ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q280856> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P39> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj . ?statement <http://www.wikidata.org/entity/P580> ?dataprop1 . } 
SELECT ?value1 ?obj WHERE { wd:Q280856 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P580 ?value1 . }