query: SELECT ?music_track_with_vocals ?music_track_with_vocalsLabel ?part_of ?part_ofLabel WHERE {
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    ?music_track_with_vocals wdt:P31 wd:Q55850593.
    ?music_track_with_vocals wdt:P361 ?part_of.
  }