We doubt that Bill went to the office. It is likely that John put down the milk. It is impossible that Brian is a swan. There is almost no chance that if John put down the milk, and Bill went to the office, then Julius is a rhino. It is highly likely that if Brian is a swan, and John put down the milk, then Greg is yellow. There is a very good chance that if John put down the milk, and Brian is a swan, then Bernhard is white.
It is probably the case that bernhard is white, or Greg is yellow.
It is impossible that bernhard is white, or Greg is yellow.
It is probably the case that bernhard is white, or Greg is yellow.
Bernhard is white, or Greg is yellow.