context: It is highly likely that Julius is a swan. We doubt that Jeff went to the garden. It is improbable that Brian is green. There is a better than even chance that if Brian is green, and Jeff went to the garden, then John discarded the milk. It is impossible that if either Julius is a swan, or Jeff went to the garden, then Greg is a lion. There is a very good chance that if Brian is green, or Jeff went to the garden, then Lily is a rhino.
hypothesis: We believe that john discarded the milk, and Julius is a swan.
valid_hypothesis: There is almost no chance that john discarded the milk, and Julius is a swan.
invalid_hypothesis: We believe that john discarded the milk, and Julius is a swan.
hypothesis_assertion: John discarded the milk, and Julius is a swan.