context: There is almost no chance that Greg is a lion. There is little chance that Bill left the milk. There is a very good chance that Jeff went to the garden. We doubt that if either Greg is a lion, or Bill left the milk, then John took the apple. It is unlikely that if either Bill left the milk, or Jeff went to the garden, then Bernhard is a swan. It is almost certain that if Greg is a lion, or Bill left the milk, then Brian is a lion.
hypothesis: It is likely that bill left the milk, and Greg is a lion.
valid_hypothesis: It is impossible that bill left the milk, and Greg is a lion.
invalid_hypothesis: It is likely that bill left the milk, and Greg is a lion.
hypothesis_assertion: Bill left the milk, and Greg is a lion.