What is {publication date} of {Super Mario Bros.} that is {place of publication} is {Europe} ?
Super Mario Bros was introduced when and where in Europe?
When and where in Europe was the Super Mario Brothers introduced?
SELECT ?y WHERE { resource:Super_Mario_Bros. property:publication_date ?n . ?n property:place_of_publication resource:Europe . ?n property:publication_date ?y }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q11168> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P577> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P291> <http://wikidata.dbpedia.org/resource/Q46>
} 

SELECT ?obj WHERE { wd:Q11168 p:P577 ?s . ?s ps:P577 ?obj . ?s pq:P291 wd:Q46 }