context: There is little chance that John went to the bedroom. It is probable that Brian is a frog. There is a very good chance that Greg is a lion.
hypothesis: It is almost certain that either Brian is a frog, or Greg is a lion.
valid_hypothesis: Chances are about even that either Brian is a frog, or Greg is a lion.
invalid_hypothesis: It is almost certain that either Brian is a frog, or Greg is a lion.
hypothesis_assertion: Either Brian is a frog, or Greg is a lion.