context: It is certain that John left the milk. There is almost no chance that Mary got the milk. We doubt that Julius is a frog. It is improbable that if either John left the milk, or Julius is a frog, then Bernhard is white. We doubt that if Julius is a frog, or John left the milk, then Greg is a lion. It is highly likely that if Julius is a frog, and John left the milk, then Lily is gray.
hypothesis: It is highly likely that either John left the milk, or Bernhard is white.
valid_hypothesis: It is highly likely that either John left the milk, or Bernhard is white.
invalid_hypothesis: There is almost no chance that either John left the milk, or Bernhard is white.
hypothesis_assertion: Either John left the milk, or Bernhard is white.