context: It is almost certain that Brian is gray. There is a better than even chance that Greg is a rhino. It is highly likely that Mary went to the garden. It is likely that if Brian is gray, or Greg is a rhino, then Bernhard is a swan. We doubt that if Brian is gray, and Mary went to the garden, then John discarded the milk. Chances are about even that if Greg is a rhino, and Mary went to the garden, then Sumit is tired.
hypothesis: It is probably not the case that either Sumit is tired, or Brian is gray.
valid_hypothesis: It is probable that either Sumit is tired, or Brian is gray.
invalid_hypothesis: It is probably not the case that either Sumit is tired, or Brian is gray.
hypothesis_assertion: Either Sumit is tired, or Brian is gray.