context: There is a very good chance that Fred dropped the apple. It is probable that Sandra got the milk. There is a very good chance that Mary is in the cinema. It is probable that if either Fred dropped the apple, or Sandra got the milk, then Daniel took the football. It is highly unlikely that if Mary is in the cinema, or Fred dropped the apple, then Brian is a lion. It is certain that if Fred dropped the apple, and Mary is in the cinema, then Bernhard is green.
hypothesis: Chances are about even that either Sandra got the milk, or Bernhard is green.
valid_hypothesis: Chances are about even that either Sandra got the milk, or Bernhard is green.
invalid_hypothesis: It is certain that either Sandra got the milk, or Bernhard is green.
hypothesis_assertion: Either Sandra got the milk, or Bernhard is green.