context: It is impossible that Greg is white. It is likely that Bernhard is a rhino. Chances are slight that John went to the garden.
hypothesis: It is almost certain that bernhard is a rhino, and Greg is white.
valid_hypothesis: It is impossible that bernhard is a rhino, and Greg is white.
invalid_hypothesis: It is almost certain that bernhard is a rhino, and Greg is white.
hypothesis_assertion: Bernhard is a rhino, and Greg is white.