response: I have no preferences about rock music. Did you know it traces back to the 40s and 50's rock n roll music?
original_response: Oh, yeah, I also really love rhythm and blues as well as country.
history: My friend loves rock music, but I don't know much about it. Do you like rock music?
knowledge: It has its roots in 1940s and 1950s rock and roll, a style which drew heavily on the African-American genres of blues and rhythm and blues, and from country music.