Did {John_Lennon} {record label} {Warner Bros. Records}?
Was John Lennon really signed to Warner Bros. Records?
Did John Lennon sign with Warner Bros. Records?
ASK WHERE { resource:John_Lennon property:record_label resource:Warner_Bros._Records }
 ASK { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1203> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P264> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q843402>. } 
ASK WHERE { wd:Q1203 wdt:P264 wd:Q843402 }