context: It is unlikely that Sandra took the milk. It is unlikely that Brian is white. There is almost no chance that Jason is hungry. We doubt that if Brian is white, and Jason is hungry, then Daniel got the apple. There is a better than even chance that if either Brian is white, or Jason is hungry, then Bernhard is a rhino. It is unlikely that if Brian is white, and Jason is hungry, then Greg is a swan.
hypothesis: We doubt that bernhard is a rhino, or Brian is white.
valid_hypothesis: We doubt that bernhard is a rhino, or Brian is white.
invalid_hypothesis: It is probable that bernhard is a rhino, or Brian is white.
hypothesis_assertion: Bernhard is a rhino, or Brian is white.