context: We believe that Lily is a rhino. It is likely that Daniel dropped the milk. There is almost no chance that Gertrude is a sheep.
hypothesis: Chances are about even that daniel dropped the milk, and Lily is a rhino.
valid_hypothesis: Chances are about even that daniel dropped the milk, and Lily is a rhino.
invalid_hypothesis: It is almost certain that daniel dropped the milk, and Lily is a rhino.
hypothesis_assertion: Daniel dropped the milk, and Lily is a rhino.