We believe that Brian is yellow. It is probably the case that Jessica is a mouse. We believe that Daniel left the milk. It is probably the case that if either Jessica is a mouse, or Daniel left the milk, then Lily is green. It is probably the case that if Daniel left the milk, and Jessica is a mouse, then Mary dropped the apple. It is certain that if Brian is yellow, or Daniel left the milk, then John went to the bedroom.
We believe that mary dropped the apple, or Daniel left the milk.
We believe that mary dropped the apple, or Daniel left the milk.
It is impossible that mary dropped the apple, or Daniel left the milk.
Mary dropped the apple, or Daniel left the milk.