context: There is a very good chance that John left the milk. There is almost no chance that Greg is a frog. It is certain that Brian is white.
hypothesis: It is certain that brian is white, or John left the milk.
valid_hypothesis: It is certain that brian is white, or John left the milk.
invalid_hypothesis: We doubt that brian is white, or John left the milk.
hypothesis_assertion: Brian is white, or John left the milk.