context: It is likely that Brian is a frog. There is a better than even chance that Greg is yellow. It is impossible that Bill left the milk. We doubt that if Bill left the milk, and Brian is a frog, then Mary went to the office. There is almost no chance that if Greg is yellow, or Bill left the milk, then Bernhard is gray. Chances are slight that if Bill left the milk, and Brian is a frog, then Sandra got the football.
hypothesis: There is a better than even chance that either Bill left the milk, or Greg is yellow.
valid_hypothesis: There is a better than even chance that either Bill left the milk, or Greg is yellow.
invalid_hypothesis: It is impossible that either Bill left the milk, or Greg is yellow.
hypothesis_assertion: Either Bill left the milk, or Greg is yellow.