context: A boy in blue shorts and a t-shirt is poised to hit a tennis ball with a racket.
hypothesis: It is probable that a boy wearing blue shorts and a t-shirt is playing tennis with his friend.
valid_hypothesis: It is probable that a boy wearing blue shorts and a t-shirt is playing tennis with his friend.
invalid_hypothesis: It is impossible that a boy wearing blue shorts and a t-shirt is playing tennis with his friend.
hypothesis_assertion: A boy wearing blue shorts and a t-shirt is playing tennis with his friend.