context: It is certain that Greg is yellow. It is improbable that Jeff went to the hallway. It is highly likely that Bernhard is green.
hypothesis: We doubt that either Jeff went to the hallway, or Greg is yellow.
valid_hypothesis: It is highly likely that either Jeff went to the hallway, or Greg is yellow.
invalid_hypothesis: We doubt that either Jeff went to the hallway, or Greg is yellow.
hypothesis_assertion: Either Jeff went to the hallway, or Greg is yellow.