Chances are slight that Jessica is a sheep. We doubt that Mary got the football. There is a very good chance that Bernhard is a frog. There is a very good chance that if either Jessica is a sheep, or Mary got the football, then Gertrude is a mouse. It is impossible that if Jessica is a sheep, or Bernhard is a frog, then Brian is a swan. It is certain that if either Jessica is a sheep, or Bernhard is a frog, then Julius is yellow.
There is a very good chance that brian is a swan, or Bernhard is a frog.
There is a very good chance that brian is a swan, or Bernhard is a frog.
It is improbable that brian is a swan, or Bernhard is a frog.
Brian is a swan, or Bernhard is a frog.