context: There is a very good chance that Mary got the apple. There is little chance that John went to the hallway. It is likely that Brian is a swan.
hypothesis: It is certain that brian is a swan, and John went to the hallway.
valid_hypothesis: It is highly unlikely that brian is a swan, and John went to the hallway.
invalid_hypothesis: It is certain that brian is a swan, and John went to the hallway.
hypothesis_assertion: Brian is a swan, and John went to the hallway.