context: Chances are about even that Jessica is a sheep. Chances are about even that Mary got the football. We doubt that Bernhard is a rhino.
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.