context: It is unlikely that Bernhard is a rhino. It is probable that Emily is a cat. We doubt that John left the milk.
hypothesis: Chances are slight that john left the milk, and Emily is a cat.
valid_hypothesis: Chances are slight that john left the milk, and Emily is a cat.
invalid_hypothesis: There is a very good chance that john left the milk, and Emily is a cat.
hypothesis_assertion: John left the milk, and Emily is a cat.