context: It is probable that Mary is in the bathroom. There is little chance that Greg is a frog. We doubt that John moved to the garden.
hypothesis: It is highly likely that either John moved to the garden, or Greg is a frog.
valid_hypothesis: It is probably not the case that either John moved to the garden, or Greg is a frog.
invalid_hypothesis: It is highly likely that either John moved to the garden, or Greg is a frog.
hypothesis_assertion: Either John moved to the garden, or Greg is a frog.