What is <radio format> of <trance> ?
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What is trance music?
SELECT DISTINCT ?x WHERE { ?x property:radio_format resource:trance }
select distinct ?answer where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject>  ?answer. ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P415> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q170435>. }
select distinct ?answer where { ?answer wdt:P415 wd:Q170435}
Radio Q