context: A man wearing a blue shirt and headphones around his neck raises his arm.
hypothesis: It is almost certain that a man is raising his arm to get someones attention.
valid_hypothesis: Chances are about even that a man is raising his arm to get someones attention.
invalid_hypothesis: It is almost certain that a man is raising his arm to get someones attention.
hypothesis_assertion: A man is raising his arm to get someones attention.