context: Chances are about even that Bill is in the cinema. It is almost certain that Brian is yellow. We doubt that Jeff went to the office.
hypothesis: It is unlikely that bill is in the cinema, or Brian is yellow.
valid_hypothesis: It is almost certain that bill is in the cinema, or Brian is yellow.
invalid_hypothesis: It is unlikely that bill is in the cinema, or Brian is yellow.
hypothesis_assertion: Bill is in the cinema, or Brian is yellow.