<http://schema.org/headline>
"Swan Lake, Op. 20: V. Danse Hongroise (Czardas) by Berliner Philharmoniker &amp;amp; Herbert von Karajan"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.songpop2.com/content/song/Berliner-Philharmoniker-%26-Herbert-von-Karajan_Swan-Lake-Op-2/OzWTm>