context: Chances are about even that Bernhard is a lion. We doubt that John left the milk. We believe that Lily is gray.
hypothesis: Chances are slight that either John left the milk, or Lily is gray.
valid_hypothesis: It is probable that either John left the milk, or Lily is gray.
invalid_hypothesis: Chances are slight that either John left the milk, or Lily is gray.
hypothesis_assertion: Either John left the milk, or Lily is gray.