context: It is highly likely that John got the apple. It is highly unlikely that Brian is a swan. Chances are about even that Mary moved to the garden.
hypothesis: It is highly likely that john got the apple, or Brian is a swan.
valid_hypothesis: It is highly likely that john got the apple, or Brian is a swan.
invalid_hypothesis: There is little chance that john got the apple, or Brian is a swan.
hypothesis_assertion: John got the apple, or Brian is a swan.