What are some magazines whose publishers are themselves Rock and Roll Hall of Fame members?
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/award> <http://dbpedia.org/resource/Rock_and_Roll_Hall_of_Fame> . ?uri <http://dbpedia.org/ontology/publisher> ?x  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Magazine>}
Rock_and_Roll_Hall_of_Fame