Anchor: Two small dogs playing in a field with a small ball.
Entailed: Two dogs are playing n the field.
Contradiction: Two cats are fighting over food.
Contradiction: The band is waiting to go on stage
Contradiction: Coercing poor women to get Norplant implants would violate their rights to reproductive choice.  
Contradiction: A senior political protester is carrying a badly spelled sign demanding an end to Social Security.
Contradiction: Auditors should report their conclusions when called for