context: There is almost no chance that Julius is a rhino. There is almost no chance that John discarded the milk. It is certain that Sandra got the apple. It is impossible that if John discarded the milk, or Sandra got the apple, then Mary went to the office. We believe that if Julius is a rhino, and John discarded the milk, then Bernhard is a swan. It is highly unlikely that if Sandra got the apple, or John discarded the milk, then Brian is gray.
hypothesis: Chances are about even that either John discarded the milk, or Bernhard is a swan.
valid_hypothesis: There is almost no chance that either John discarded the milk, or Bernhard is a swan.
invalid_hypothesis: Chances are about even that either John discarded the milk, or Bernhard is a swan.
hypothesis_assertion: Either John discarded the milk, or Bernhard is a swan.