context: It is impossible that Greg is a lion. It is certain that Brian is white. There is a better than even chance that Bernhard is gray.
hypothesis: There is a better than even chance that bernhard is gray, or Greg is a lion.
valid_hypothesis: There is a better than even chance that bernhard is gray, or Greg is a lion.
invalid_hypothesis: Chances are slight that bernhard is gray, or Greg is a lion.
hypothesis_assertion: Bernhard is gray, or Greg is a lion.