Assertion: southern rock | /r/CapableOf | develop in the southern united states
Facets:
value: from blues
type: OTHER
value: from rock
type: LOCATION
value: from roll
type: OTHER
value: from country music
type: LOCATION
Source sentences:
text: It developed in the Southern United States from rock and roll, country music, and blues, and is focused generally on electric guitar and vocals.