what is the {start time} for {Henry II of France} has {position held} as {King of France} ?
When did Henty II become King of Frnace?
When did was Henry II of France the King of France?
SELECT ?g WHERE { ?x property:position_held resource:King_of_France . ?x property:start_time ?g . resource:Henry_II_of_France property:position_held ?x }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q132545> .
?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> <http://wikidata.dbpedia.org/resource/Q18384454> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q132545 p:P39 ?s . ?s ps:P39 wd:Q18384454 . ?s pq:P580 ?value}