context: It is probably the case that Mary grabbed the milk. It is almost certain that Brian is white. It is certain that Greg is gray.
hypothesis: It is unlikely that mary grabbed the milk, and Brian is white.
valid_hypothesis: It is probable that mary grabbed the milk, and Brian is white.
invalid_hypothesis: It is unlikely that mary grabbed the milk, and Brian is white.
hypothesis_assertion: Mary grabbed the milk, and Brian is white.