context: Chances are slight that Brian is a rhino. Chances are about even that John dropped the milk. There is almost no chance that Greg is yellow.
hypothesis: Chances are slight that either Greg is yellow, or Brian is a rhino.
valid_hypothesis: Chances are slight that either Greg is yellow, or Brian is a rhino.
invalid_hypothesis: It is almost certain that either Greg is yellow, or Brian is a rhino.
hypothesis_assertion: Either Greg is yellow, or Brian is a rhino.