context: There is a very good chance that Greg is yellow. There is a better than even chance that Mary went to the bedroom. It is likely that Bill moved to the garden. It is certain that if Greg is yellow, or Bill moved to the garden, then Julius is a rhino. It is unlikely that if Mary went to the bedroom, and Greg is yellow, then Brian is a lion. It is almost certain that if Bill moved to the garden, or Greg is yellow, then Bernhard is white.
hypothesis: It is certain that either Mary went to the bedroom, or Brian is a lion.
valid_hypothesis: Chances are about even that either Mary went to the bedroom, or Brian is a lion.
invalid_hypothesis: It is certain that either Mary went to the bedroom, or Brian is a lion.
hypothesis_assertion: Either Mary went to the bedroom, or Brian is a lion.