context: Chances are about even that Greg is yellow. We doubt that Bernhard is white. It is almost certain that John went to the hallway.
hypothesis: There is almost no chance that either Greg is yellow, or John went to the hallway.
valid_hypothesis: Chances are about even that either Greg is yellow, or John went to the hallway.
invalid_hypothesis: There is almost no chance that either Greg is yellow, or John went to the hallway.
hypothesis_assertion: Either Greg is yellow, or John went to the hallway.