context: It is probable that Jeff put down the apple. It is highly likely that Brian is a rhino. There is a better than even chance that John went to the hallway.
hypothesis: It is almost certain that john went to the hallway, or Brian is a rhino.
valid_hypothesis: It is almost certain that john went to the hallway, or Brian is a rhino.
invalid_hypothesis: Chances are about even that john went to the hallway, or Brian is a rhino.
hypothesis_assertion: John went to the hallway, or Brian is a rhino.