context: It is probably the case that Greg is a lion. It is unlikely that John dropped the milk. There is almost no chance that Jeff went to the hallway.
hypothesis: There is little chance that john dropped the milk, and Greg is a lion.
valid_hypothesis: There is little chance that john dropped the milk, and Greg is a lion.
invalid_hypothesis: There is a very good chance that john dropped the milk, and Greg is a lion.
hypothesis_assertion: John dropped the milk, and Greg is a lion.