context: Chances are slight that Brian is gray. It is improbable that John put down the milk. It is likely that Greg is yellow.
hypothesis: It is unlikely that john put down the milk, or Brian is gray.
valid_hypothesis: It is unlikely that john put down the milk, or Brian is gray.
invalid_hypothesis: It is probably the case that john put down the milk, or Brian is gray.
hypothesis_assertion: John put down the milk, or Brian is gray.