<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/MusicRecording>
<https://www.songpop2.com/content/song/Friedrich-Lenz-Kurt-B%C3%B6hme-Fritz-Wunderlich-%26-Erika-K%C3%B6th_Die-/P1Hww>