Anchor: Two female are walking their dogs, and the male is interested in the dogs.
Entailed: The male likes dogs.
Contradiction: The females are walking cats.
Contradiction: $750 million is more money than $500 billion. 
Contradiction: Gore criticized the answers Bush gave in the quiz.
Contradiction: Three little boys are asleep in their swim trunks.
Contradiction: It's something that's required for every college student.