What is {position held} of {Edward VIII} that is {start time} is {1936-1-20} ?
What position did Edward VIII hold when he started in 1936-1-20?
SELECT ?obj WHERE { wd:Q590227 p:P39 ?s . ?s ps:P39 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1936')) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q590227> .
?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> <1936-1-20>
} 

which position did Edward VIII hold when he started in 20-01-1936?