what is the {start time} for {Æthelred the Unready} has {position held} as {monarch of England} ?
When did Aethrlred the Unread start his position as the Monarch of England?
what is the start time for Aethelred the unready has position held  monarch of England?
SELECT ?b WHERE { resource:Æthelred_the_Unready property:position_held ?f . ?f property:position_held resource:monarch_of_England . ?f property:start_time ?b }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q183499> .
?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/Q18810062> .
?statement <http://www.wikidata.org/entity/P580> ?value. 
} 

SELECT ?value WHERE { wd:Q183499 p:P39 ?s . ?s ps:P39 wd:Q18810062 . ?s pq:P580 ?value}