context: There is a better than even chance that Greg is a rhino. Chances are about even that Fred went to the hallway. We doubt that Julie is in the cinema.
hypothesis: It is probably the case that julie is in the cinema, or Greg is a rhino.
valid_hypothesis: It is probably the case that julie is in the cinema, or Greg is a rhino.
invalid_hypothesis: It is highly unlikely that julie is in the cinema, or Greg is a rhino.
hypothesis_assertion: Julie is in the cinema, or Greg is a rhino.