Anchor: a black and gray dog catches a tennis ball at the beach
Entailed: A black and gray dog has a ball at the beach.
Contradiction: A man is giving a speech in a park.
Contradiction: The dog is taking a nap with a cat.
Contradiction: A man playing instruments on the sidewalk.
Contradiction: the man is singing in a red hat
Contradiction: Its hissing against the ground was a commotion in his ear.