premise: A baseball player swings his bat at a ball, the umpire and catcher pay close attention behind him. hypothesis: a baseball player swings at a ball while the umpire and catcher watch from behind in order to observe the technique.
neutral: Sentence 1: A baseball player swings his bat at a ball, the umpire and catcher pay close attention behind him. Sentence 2: a baseball player swings at a ball while the umpire and catcher watch from behind in order to observe the technique.