Anchor: Each group was then asked to answer the same set of questions about their particular era.
Entailed: The same set of questions was posed to each group.
Contradiction: A different set of questions was used for each group.
Contradiction: He didn't look like he was going to stab anything.
Contradiction: The bull rider is in the rodeo.
Contradiction: the boy races his toy cars
Contradiction: Non-Western music was popularized partly by Paul Simon.