Text: Flowing in and out of 80 arched passageways known as vomitoria, aristocrats and plebs alike came to see bears, lions, tigers, and leopards starved into fighting each other and against criminals, war captives, and (according to some historians) Christians.
Entailment: Tigers and leopards were sometimes starved and encouraged to fight criminals.
Contradiction: Only aristocrats were allowed to see the bears and lions.