context: There is almost no chance that Brian is gray. There is a better than even chance that Bill went to the garden. It is improbable that John moved to the office. It is highly unlikely that if either Bill went to the garden, or John moved to the office, then Greg is a lion. It is likely that if Bill went to the garden, or Brian is gray, then Mary dropped the milk. There is almost no chance that if Brian is gray, or John moved to the office, then Bernhard is yellow.
hypothesis: It is almost certain that bill went to the garden, and Brian is gray.
valid_hypothesis: There is almost no chance that bill went to the garden, and Brian is gray.
invalid_hypothesis: It is almost certain that bill went to the garden, and Brian is gray.
hypothesis_assertion: Bill went to the garden, and Brian is gray.