premise: Xylophonists play in a dark setting. hypothesis: xylophone is played by someone.
entailment: Xylophonists are the same as someone.|entailment: If xylophonists play, the the xylophone must be played by someone.|entailment: Sentence 1 indicate the people are playing the xylophone in a dark setting while Sentence 2 indicates the people are just playing the xylophone.