PWN-3.0 relation(s)

eq_is_caused_by

rock _4(n), rock and roll _1(n), rock-and-roll _1(n), rock music _1(n), rock 'n' roll _1(n), rock'n'roll _1(n) a genre of popular music originating in the 1950s;a blend of black rhythm-and-blues with white country-and-western