context: It is almost certain that Greg is green. There is almost no chance that Winona is a cat. It is highly likely that Brian is a rhino.
hypothesis: Chances are slight that either Brian is a rhino, or Greg is green.
valid_hypothesis: Chances are slight that either Brian is a rhino, or Greg is green.
invalid_hypothesis: It is certain that either Brian is a rhino, or Greg is green.
hypothesis_assertion: Either Brian is a rhino, or Greg is green.