What is {discoverer of} of {musical instrument} of {Sidney Bechet} ?
Who is pioneer of melodic instrument of Sidney Bechet ?
Who  is discoverer  of musical instrument of Sidney Bechet ?
SELECT ?r WHERE { resource:Sidney_Bechet property:instrument ?p . ?p property:discoverer_or_inventor ?r }
SELECT ?answer WHERE { ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q313519> . ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1303>. ?statement1 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?X . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?X. ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P61> . ?statement2 <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?answer . }
SELECT ?answer WHERE { wd:Q313519 wdt:P1303 ?X . ?X wdt:P61 ?answer}
Johann Christoph Denner Adolphe Sax