<http://schema.org/headline>
"Aethelred the Unready, an Opera In Seven Scenes: Scene VI by Richard Wilson"^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.songpop2.com/content/song/Richard-Wilson_Aethelred-the-Unready-an-Opera-In-Seven-Scene/PQ77j>