<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/MusicRecording>
<https://www.songpop2.com/content/song/Helena-D%C3%B6se-Sixten-Ehrling-%26-G%C3%B6teborgs-Symfoniker_Aida-Act-3/Pe0KR>