<http://schema.org/headline>
"Dulcius Ex Asperis (Through Difficulty, Sweetness) by Keith Zizza"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.songpop2.com/content/song/Keith-Zizza_Dulcius-Ex-Asperis-Through-Difficulty-Sweetness/OIgel>