We doubt that Jessica is a wolf. It is almost certain that John went to the office. It is almost certain that Lily is gray. It is highly likely that if either Jessica is a wolf, or Lily is gray, then Sandra left the milk. It is improbable that if either Jessica is a wolf, or John went to the office, then Greg is a frog. There is little chance that if Jessica is a wolf, or John went to the office, then Julius is green.
It is improbable that either John went to the office, or Lily is gray.
It is improbable that either John went to the office, or Lily is gray.
It is certain that either John went to the office, or Lily is gray.
Either John went to the office, or Lily is gray.