context: We doubt that John discarded the milk. It is unlikely that Brian is a swan. There is little chance that Jessica is a mouse.
hypothesis: We believe that either Jessica is a mouse, or John discarded the milk.
valid_hypothesis: It is probably not the case that either Jessica is a mouse, or John discarded the milk.
invalid_hypothesis: We believe that either Jessica is a mouse, or John discarded the milk.
hypothesis_assertion: Either Jessica is a mouse, or John discarded the milk.