context: A group of men in fatigues eat at a fast food restaurant.
hypothesis: There is a better than even chance that there is a group of men who are all friends.
valid_hypothesis: There is a better than even chance that there is a group of men who are all friends.
invalid_hypothesis: It is improbable that there is a group of men who are all friends.
hypothesis_assertion: There is a group of men who are all friends.