It is almost certain that Bernhard is a lion. It is unlikely that Winona is a mouse. Chances are slight that Julius is a swan. Chances are about even that if Julius is a swan, and Bernhard is a lion, then Sandra left the milk. It is impossible that if Julius is a swan, and Bernhard is a lion, then Brian is a frog. We doubt that if Julius is a swan, or Winona is a mouse, then Mary went to the office.
There is almost no chance that either Bernhard is a lion, or Winona is a mouse.
We believe that either Bernhard is a lion, or Winona is a mouse.
There is almost no chance that either Bernhard is a lion, or Winona is a mouse.
Either Bernhard is a lion, or Winona is a mouse.