context: It is probably the case that Greg is gray. It is probably not the case that Julie is in the bedroom. It is improbable that Mary went to the hallway.
hypothesis: It is impossible that julie is in the bedroom, or Greg is gray.
valid_hypothesis: We believe that julie is in the bedroom, or Greg is gray.
invalid_hypothesis: It is impossible that julie is in the bedroom, or Greg is gray.
hypothesis_assertion: Julie is in the bedroom, or Greg is gray.