context: It is probably not the case that Greg is a lion. We doubt that John dropped the apple. There is a better than even chance that Bernhard is a rhino.
hypothesis: There is almost no chance that either Bernhard is a rhino, or John dropped the apple.
valid_hypothesis: There is a better than even chance that either Bernhard is a rhino, or John dropped the apple.
invalid_hypothesis: There is almost no chance that either Bernhard is a rhino, or John dropped the apple.
hypothesis_assertion: Either Bernhard is a rhino, or John dropped the apple.