context: It is improbable that John went to the garden. It is probable that Brian is gray. There is almost no chance that Julius is a frog. It is improbable that if Brian is gray, or John went to the garden, then Greg is green. It is unlikely that if John went to the garden, and Brian is gray, then Antoine is thirsty. There is little chance that if Julius is a frog, and Brian is gray, then Lily is a frog.
hypothesis: It is certain that either John went to the garden, or Lily is a frog.
valid_hypothesis: There is little chance that either John went to the garden, or Lily is a frog.
invalid_hypothesis: It is certain that either John went to the garden, or Lily is a frog.
hypothesis_assertion: Either John went to the garden, or Lily is a frog.