It is impossible that Bernhard is yellow. Chances are about even that John went to the bedroom. We doubt that Julius is a swan. It is probable that if Bernhard is yellow, and John went to the bedroom, then Fred is in the bedroom. It is certain that if Julius is a swan, or John went to the bedroom, then Mary left the milk. It is certain that if either Julius is a swan, or Bernhard is yellow, then Greg is a frog.
It is probably the case that fred is in the bedroom, or Bernhard is yellow.
It is impossible that fred is in the bedroom, or Bernhard is yellow.
It is probably the case that fred is in the bedroom, or Bernhard is yellow.
Fred is in the bedroom, or Bernhard is yellow.