what is the {start time} for {Henry Morgan} has {position held} as {Lieutenant Governor of Jamaica} ?
On what date did Henry Morgan become the Lieutenant Governor of Jamaica?
When did Henry Morgan become the Lieutenant Governor of Jamaica?
SELECT ?j WHERE { ?k property:position_held resource:Lieutenant_Governor_of_Jamaica . ?k property:start_time ?j . resource:Henry_Morgan property:position_held ?k }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q215502> .
?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/Q50360634> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q215502 p:P39 ?s . ?s ps:P39 wd:Q50360634 . ?s pq:P580 ?value}