It is impossible that Daniel left the football. It is almost certain that Greg is a swan. It is impossible that Mary dropped the milk. There is a very good chance that if either Greg is a swan, or Daniel left the football, then Bernhard is gray. There is a better than even chance that if Greg is a swan, or Daniel left the football, then John went to the office. We doubt that if Mary dropped the milk, and Daniel left the football, then Brian is a lion.
We believe that either Bernhard is gray, or Mary dropped the milk.
We believe that either Bernhard is gray, or Mary dropped the milk.
We doubt that either Bernhard is gray, or Mary dropped the milk.
Either Bernhard is gray, or Mary dropped the milk.