Assertion: early rock | /r/HasProperty | popular
Facets:
Source sentences:
text: Early rock and roll was popular because it was music to rebel by, it was full of teenage angst, and because Elvis shook like none before, but early rock and roll was also popular because the music was, in terms of its structure, safe.
text: Early rock and roll was popular because it was music to rebel by, it was full of teenage angst, and because Elvis shook like none before, but early rock and roll was also popular because the music was, in terms of its structure, safe.