context: It is improbable that Lily is a rhino. It is highly unlikely that Jeff went to the garden. Chances are about even that John left the milk.
hypothesis: It is highly unlikely that john left the milk, and Lily is a rhino.
valid_hypothesis: It is highly unlikely that john left the milk, and Lily is a rhino.
invalid_hypothesis: We believe that john left the milk, and Lily is a rhino.
hypothesis_assertion: John left the milk, and Lily is a rhino.