Assertion: rock | /r/CapableOf | appear at time
Facets:
Source sentences:
text: Rock and roll appeared at a time when racial tensions in the United States were entering a new phase, with the beginnings of the civil rights movement for desegregation, leading to the U.S. Supreme Court ruling that abolished the policy of "separate but equal" in 1954, but leaving a policy which would be extremely difficult to enforce in parts of the United States.
text: Rock and roll appeared at a time when racial tensions in the United States were entering a new phase, with the beginnings of the civil rights movement for desegregation, leading to the Supreme Court ruling that abolished the policy of "separate but equal" in 1954, but leaving a policy which would be extremely difficult to enforce in parts of the United States.