premise: The dog's mouth is open like he is yawning. hypothesis: a dog is yawning.
entailment: the dog's mouth is open as he is yawning.|entailment: "A dog is yawning" is a rephrase of "The dog's mouth is open like he is yawning.".|entailment: The dog's mouth is open like he is yawning so it should be yawnimg.