context: There is a better than even chance that Daniel grabbed the milk. It is certain that Brian is a swan. It is probably the case that Greg is white.
hypothesis: Chances are about even that greg is white, and Daniel grabbed the milk.
valid_hypothesis: Chances are about even that greg is white, and Daniel grabbed the milk.
invalid_hypothesis: There is almost no chance that greg is white, and Daniel grabbed the milk.
hypothesis_assertion: Greg is white, and Daniel grabbed the milk.