What is {open days} of {British Museum} and {closed on}
When were British Museum days opened and closed?
When did open days of British Museum and closed on?
SELECT ?u ?h WHERE { ?m property:closed_on ?u . . ?m property:open_days ?h . resource:British_Museum property:open_days ?m }
select distinct ?dataprop1 ?obj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q6373> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P3025> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj . ?statement <http://www.wikidata.org/entity/P580> ?dataprop1 . } 
SELECT ?value1 ?obj WHERE { wd:Q6373 p:P3025 ?s . ?s ps:P3025 ?obj . ?s pq:P3026 ?value1 . }