Assertion: rock | /r/HasProperty | genre
Facets:
value: formerly
type: DEGREE
value: under popular music
type: LOCATION
Source sentences:
text: Being a genre under popular music, rock is often distinct with its use of the electric bass guitar, drums, organ and piano.
text: Rock and roll, formerly a genre devoted to fun and loudness, had now become rock, a more serious Anglo-American art form with cultivated links to politicized folk music and the hippie generation's notion of youth as a self-consciously oppositional counter-culture.