context: It is probably not the case that John picked up the apple. Chances are slight that Fred went to the cinema. It is probably the case that Brian is a lion. There is little chance that if Brian is a lion, and Fred went to the cinema, then Bernhard is green. Chances are slight that if either Fred went to the cinema, or John picked up the apple, then Julius is a swan. It is unlikely that if Brian is a lion, and Fred went to the cinema, then Mary moved to the office.
hypothesis: There is a very good chance that mary moved to the office, and Julius is a swan.
valid_hypothesis: It is impossible that mary moved to the office, and Julius is a swan.
invalid_hypothesis: There is a very good chance that mary moved to the office, and Julius is a swan.
hypothesis_assertion: Mary moved to the office, and Julius is a swan.