Text: As an old Anglo-Saxon prophecy While stands the Colosseum, Rome shall stand; when falls the Colosseum, Rome shall fall; and when Rome falls, with it shall fall the world.
Entailment: There was an Anglo-Saxon prediction that both Rome and the world would fall when the Colosseum falls.
Contradiction: In ancient times, an Anglo-Saxon prophecy claimed that the world would endure even if Rome fell.