context: There is a very good chance that Bill left the apple. It is probably not the case that Lily is a frog. There is little chance that Brian is a lion.
hypothesis: We doubt that bill left the apple, and Lily is a frog.
valid_hypothesis: We doubt that bill left the apple, and Lily is a frog.
invalid_hypothesis: It is probable that bill left the apple, and Lily is a frog.
hypothesis_assertion: Bill left the apple, and Lily is a frog.