Assertion: rock | /r/CapableOf | develop in early 1950s
Facets:
value: from a kind of music
type: OTHER
Source sentences:
text: Rock and roll developed in the early 1950s from a kind of music called rhythm and blues performed by black singers and musicians.
text: Rock and roll developed in the early 1950s from a kind of music called rhythm and blues performed by black singers and musicians.
text: Rock and roll developed in the early 1950s from a kind of music called rhythm and blues performed by black singers and musicians.