premise: A horse has fallen down on the green grass and the jockey riding on top is trying his hardest to not fall off. hypothesis: The jockey is trying not to fall off the horse.
entailment: The jockey trying not to fall off the horse as the horse fallen.|entailment: The "jockey is trying not to fall off the horse" is a rephrase of "jockey riding on top is trying his hardest to not fall off.".|entailment: Jockey is trying his best to not fall.