context: There is almost no chance that Brian is white. It is impossible that Daniel left the milk. It is probably not the case that John grabbed the apple.
hypothesis: It is impossible that brian is white, and Daniel left the milk.
valid_hypothesis: It is impossible that brian is white, and Daniel left the milk.
invalid_hypothesis: It is almost certain that brian is white, and Daniel left the milk.
hypothesis_assertion: Brian is white, and Daniel left the milk.