premise: A boy wearing a shirt with the Simpsons character, Ralph Wiggum, plays a Nintendo DS with his sister. hypothesis: A boy is playing a Nintendo DS with his sister.
entailment: Playing with his sister a boy is wearing a shirt.|entailment: A boy wearing a shirt with the Simpsons character, Ralph Wiggum is the same as a boy who plays Nintendo DS with his sister.|entailment: The boy is playing with his sister because the boy plays with his sister.