What is {position held} of {John Foster Dulles} and {point in time}
What position did John Cultivate Dulles hold and when?
What position did John Foster Dulles hold and when?
SELECT ?e ?y WHERE { resource:John_Foster_Dulles property:position_held ?e . ?e property:point_in_time ?e . . ?e property:position_held ?y }
select distinct ?dataprop1 ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q223677> . ?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:Q223677 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P585 ?value1 . }