List all the record label distributed by the distributor of Zune?
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/property/distributor> <http://dbpedia.org/resource/Zune> . ?x <http://dbpedia.org/property/distributor> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/RecordLabel>}
Zune