Text: And, for baby-boom rockers, when all other musical, lyrical, and sociopolitical claims for the rock 'n' roll revolution have collapsed, the memory of growing up with the Bob Merrill songbook will always be justification enough.
Entailment: The rock 'n' roll revolution has not stood the test of time.
Contradiction: The Bob Merrill songbook has nothing to do with rock 'n' roll.