context: It is probably the case that Mary put down the apple. We believe that Brian is gray. There is little chance that Bill moved to the garden.
hypothesis: It is probably not the case that bill moved to the garden, or Mary put down the apple.
valid_hypothesis: We believe that bill moved to the garden, or Mary put down the apple.
invalid_hypothesis: It is probably not the case that bill moved to the garden, or Mary put down the apple.
hypothesis_assertion: Bill moved to the garden, or Mary put down the apple.