context: It is certain that Greg is gray. It is probable that John dropped the apple. It is improbable that Mary moved to the garden.
hypothesis: It is highly likely that either Mary moved to the garden, or Greg is gray.
valid_hypothesis: It is highly likely that either Mary moved to the garden, or Greg is gray.
invalid_hypothesis: It is impossible that either Mary moved to the garden, or Greg is gray.
hypothesis_assertion: Either Mary moved to the garden, or Greg is gray.