It is certain that John left the apple. It is impossible that Greg is a rhino. It is highly unlikely that Sandra got the milk. There is almost no chance that if Greg is a rhino, and Sandra got the milk, then Bernhard is green. There is a very good chance that if Greg is a rhino, or Sandra got the milk, then Mary went to the office. It is improbable that if Sandra got the milk, or Greg is a rhino, then Brian is a swan.
It is highly unlikely that either Bernhard is green, or Mary went to the office.
It is highly unlikely that either Bernhard is green, or Mary went to the office.
It is probable that either Bernhard is green, or Mary went to the office.
Either Bernhard is green, or Mary went to the office.