context: It is certain that John discarded the milk. It is likely that Brian is a rhino. There is a very good chance that Gertrude is a mouse. It is almost certain that if Gertrude is a mouse, or Brian is a rhino, then Bill went to the hallway. It is probable that if either Brian is a rhino, or John discarded the milk, then Julius is a swan. It is almost certain that if Gertrude is a mouse, and John discarded the milk, then Daniel dropped the apple.
hypothesis: There is a better than even chance that either Bill went to the hallway, or John discarded the milk.
valid_hypothesis: It is improbable that either Bill went to the hallway, or John discarded the milk.
invalid_hypothesis: There is a better than even chance that either Bill went to the hallway, or John discarded the milk.
hypothesis_assertion: Either Bill went to the hallway, or John discarded the milk.