It is almost certain that Julius is a swan. There is a very good chance that Bernhard is gray. It is unlikely that Brian is white. It is highly unlikely that if either Julius is a swan, or Brian is white, then Greg is green. Chances are about even that if either Brian is white, or Julius is a swan, then Lily is a rhino. It is impossible that if Julius is a swan, or Bernhard is gray, then Mary dropped the apple.
There is a very good chance that mary dropped the apple, or Bernhard is gray.
There is a very good chance that mary dropped the apple, or Bernhard is gray.
We doubt that mary dropped the apple, or Bernhard is gray.
Mary dropped the apple, or Bernhard is gray.