context: We believe that Brian is white. It is almost certain that John went to the hallway. It is probably the case that Greg is yellow. There is almost no chance that if Brian is white, or John went to the hallway, then Mary moved to the office. It is probably not the case that if either Brian is white, or Greg is yellow, then Julius is gray. It is certain that if Greg is yellow, and John went to the hallway, then Lily is a rhino.
hypothesis: Chances are about even that either Lily is a rhino, or Brian is white.
valid_hypothesis: Chances are about even that either Lily is a rhino, or Brian is white.
invalid_hypothesis: It is almost certain that either Lily is a rhino, or Brian is white.
hypothesis_assertion: Either Lily is a rhino, or Brian is white.