Assertion: country music's song | /r/HasProperty | recorded by african-american musicians
Facets:
value: originally
type: MANNER
Source sentences:
text: For example, in the early years of rock and roll, many songs originally recorded by African-American musicians were re-recorded by white artists such as Pat Boone in a more toned-down style, often with changed lyrics, that lacked the hard edge of the original versions.