context: It is likely that Bernhard is green. It is likely that Sandra grabbed the milk. It is probably the case that Brian is a rhino. There is a very good chance that if Brian is a rhino, or Sandra grabbed the milk, then Mary got the apple. There is little chance that if Sandra grabbed the milk, or Brian is a rhino, then John left the football. It is probably the case that if Sandra grabbed the milk, or Brian is a rhino, then Julius is gray.
hypothesis: Chances are about even that bernhard is green, and Brian is a rhino.
valid_hypothesis: Chances are about even that bernhard is green, and Brian is a rhino.
invalid_hypothesis: It is certain that bernhard is green, and Brian is a rhino.
hypothesis_assertion: Bernhard is green, and Brian is a rhino.