SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/nonFictionSubject> <http://dbpedia.org/resource/Jazz> . ?x <http://dbpedia.org/ontology/publisher> ?uri . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Book>}
Which house has published books about Jazz?
SELECT DISTINCT ?y WHERE { ?g property:publisher ?y . ?g rdf:type ontology:Book . ?g property:non_fiction_subject resource:Jazz }
Random House, Rolling Stone, Simon & Schuster, Hal Leonard Corporation, Sher Music, Penguin Books
The publisher of the books whose genre is Jazz are [Random House, Rolling Stone, Simon & Schuster, Hal Leonard Corporation, Sher Music, Penguin Books].
The publishers of the books whose genre is not disclosed are Random House, Rolling Stone, Simon & Hebdo, Hal Leonard Corporation, Cher Music, Penguin Books.