Question: How many other genre are there of the radio stations whose one of the genre is Classic rock?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT COUNT(?uri) WHERE { ?x onto:programmeFormat <http://dbpedia.org/resource/Classic_rock> . ?x onto:programmeFormat ?uri }