what is the {point in time} for {Minnie Mouse} has {award received} as {star on Hollywood Walk of Fame} ?
On what day did minnie mouse receive a star on the hollywood walk of fame?
When did Minnie Mouse receive a star on the Hollywood Walk of Fame?
SELECT ?q WHERE { ?x property:point_in_time ?q . resource:Minnie_Mouse property:award_received ?x . ?x property:award_received resource:star_on_Hollywood_Walk_of_Fame }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q11936> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P166> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q17985761> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q11936 p:P166 ?s . ?s ps:P166 wd:Q17985761 . ?s pq:P585 ?value}