It is almost certain that Sandra left the football. It is probably the case that Mary took the milk. We believe that Brian is a swan. We doubt that if Mary took the milk, and Brian is a swan, then Julius is green. Chances are about even that if either Sandra left the football, or Brian is a swan, then John went to the bedroom. It is highly unlikely that if Mary took the milk, and Sandra left the football, then Jeff dropped the apple.
It is probably the case that julius is green, and Jeff dropped the apple.
It is impossible that julius is green, and Jeff dropped the apple.
It is probably the case that julius is green, and Jeff dropped the apple.
Julius is green, and Jeff dropped the apple.