<http://schema.org/headline>
"Der Schmetterling, D. 633 by Rita Streich &amp;amp; Erik Werba"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.songpop2.com/content/song/Rita-Streich-%26-Erik-Werba_Der-Schmetterling-D-633/PXXa1>