premise: Two dirt bikers- one in black and red, sporting number 64, the other in blue and white displaying a red '21'- round the corner of a tree-lined track. hypothesis: There are two people and two motorbikes in this picture.
entailment: Sentence one gives a description of two dirt bikers, and sentence two describes two motorbikes.|entailment: Two bikers implies there are two people and two motorbikes.|entailment: Two dirt bikers are two people.   Dirt bikers who round a corner use two motorbikes.