context: There is a very good chance that Brian is green. It is unlikely that Bernhard is a rhino. It is probably the case that Fred went to the cinema. There is little chance that if either Bernhard is a rhino, or Fred went to the cinema, then Yann got the milk there. Chances are about even that if Brian is green, and Fred went to the cinema, then Jeff discarded the milk. There is a very good chance that if Bernhard is a rhino, or Brian is green, then Lily is a frog.
hypothesis: Chances are about even that either Jeff discarded the milk, or Lily is a frog.
valid_hypothesis: Chances are about even that either Jeff discarded the milk, or Lily is a frog.
invalid_hypothesis: There is almost no chance that either Jeff discarded the milk, or Lily is a frog.
hypothesis_assertion: Either Jeff discarded the milk, or Lily is a frog.