premise: It looks like quite a sweaty, smelly dog pile over one little rugby ball, but the boys in blue seem to want it more. hypothesis: A little boy wants a dirty rugby ball.
entailment: A rugby ball will be dirty if there is dog pile over it.|entailment: A sweaty, smelly dog pile over a rugby ball implies that the ball is also dirty.|entailment: If the boy is in a dog pile over a ball, obviously the boy wants the ball.