There is little chance that Fred moved to the office. It is improbable that John left the football. It is likely that Bernhard is a lion. It is certain that if John left the football, or Fred moved to the office, then Lily is a swan. It is improbable that if either Fred moved to the office, or John left the football, then Daniel grabbed the milk. There is a better than even chance that if John left the football, or Fred moved to the office, then Brian is gray.
It is impossible that either John left the football, or Bernhard is a lion.
It is probably the case that either John left the football, or Bernhard is a lion.
It is impossible that either John left the football, or Bernhard is a lion.
Either John left the football, or Bernhard is a lion.