context: There is a very good chance that Brian is a frog. It is probable that Daniel left the milk. Chances are about even that Bernhard is a swan.
hypothesis: It is probable that bernhard is a swan, and Daniel left the milk.
valid_hypothesis: It is probably not the case that bernhard is a swan, and Daniel left the milk.
invalid_hypothesis: It is probable that bernhard is a swan, and Daniel left the milk.
hypothesis_assertion: Bernhard is a swan, and Daniel left the milk.