Anchor: A big black dog chases a big brown dog with a green object in his mouth while another big brown dog tags behind.
Entailed: There is more than one dog.
Contradiction: The cat is on top of the giraffe.
Contradiction: Both brown dogs are chasing the black dog.
Contradiction: Three dogs are stuck in their crates at the pound waiting for a new family.
Contradiction: The dogs are resting on the ground.
Contradiction: The dogs are sleeping outdoors.