context: It is probably not the case that Brian is a rhino. There is little chance that Winona is a cat. It is almost certain that Greg is yellow.
hypothesis: It is certain that winona is a cat, or Brian is a rhino.
valid_hypothesis: It is probably not the case that winona is a cat, or Brian is a rhino.
invalid_hypothesis: It is certain that winona is a cat, or Brian is a rhino.
hypothesis_assertion: Winona is a cat, or Brian is a rhino.