premise: A man jumping a dirt ramp on a bmx bike. hypothesis: A man does a jump trick on his bike.
entailment: In order to be jumping a dirt ramp, the man does a jump trick on his bike.|entailment: Implies that if you are jumping with a bmx bike, you are doing a jump trick.|entailment: If the man is jumping off a ramp on a bmx bike, then he is doing a jump trick.