context: There is almost no chance that John is in the bathroom. Chances are about even that Bernhard is a rhino. It is probable that Mary got the football.
hypothesis: There is almost no chance that either Bernhard is a rhino, or Mary got the football.
valid_hypothesis: Chances are about even that either Bernhard is a rhino, or Mary got the football.
invalid_hypothesis: There is almost no chance that either Bernhard is a rhino, or Mary got the football.
hypothesis_assertion: Either Bernhard is a rhino, or Mary got the football.