context: Chances are about even that Bernhard is a frog. It is highly likely that Mary is in the bathroom. We doubt that John discarded the apple.
hypothesis: It is impossible that either Mary is in the bathroom, or John discarded the apple.
valid_hypothesis: We believe that either Mary is in the bathroom, or John discarded the apple.
invalid_hypothesis: It is impossible that either Mary is in the bathroom, or John discarded the apple.
hypothesis_assertion: Either Mary is in the bathroom, or John discarded the apple.