context: There is little chance that Julius is a swan. It is highly likely that Greg is gray. It is almost certain that John picked up the apple.
hypothesis: It is almost certain that julius is a swan, or John picked up the apple.
valid_hypothesis: It is almost certain that julius is a swan, or John picked up the apple.
invalid_hypothesis: Chances are about even that julius is a swan, or John picked up the apple.
hypothesis_assertion: Julius is a swan, or John picked up the apple.