context: Chances are slight that Mary went to the kitchen. Chances are slight that Bernhard is yellow. It is impossible that Greg is a rhino.
hypothesis: It is impossible that bernhard is yellow, and Greg is a rhino.
valid_hypothesis: It is impossible that bernhard is yellow, and Greg is a rhino.
invalid_hypothesis: It is probably the case that bernhard is yellow, and Greg is a rhino.
hypothesis_assertion: Bernhard is yellow, and Greg is a rhino.