context: We doubt that Bernhard is a rhino. It is likely that Lily is a swan. It is probably the case that Mary dropped the milk.
hypothesis: It is probable that bernhard is a rhino, and Lily is a swan.
valid_hypothesis: Chances are slight that bernhard is a rhino, and Lily is a swan.
invalid_hypothesis: It is probable that bernhard is a rhino, and Lily is a swan.
hypothesis_assertion: Bernhard is a rhino, and Lily is a swan.