It is almost certain that Mary took the apple. It is impossible that Fred dropped the apple. It is likely that Brian is a rhino. There is a very good chance that if either Mary took the apple, or Fred dropped the apple, then John went to the kitchen. There is little chance that if Brian is a rhino, or Fred dropped the apple, then Lily is a frog. Chances are slight that if either Fred dropped the apple, or Mary took the apple, then Sandra got the football.
It is likely that either Fred dropped the apple, or Brian is a rhino.
It is likely that either Fred dropped the apple, or Brian is a rhino.
It is highly unlikely that either Fred dropped the apple, or Brian is a rhino.
Either Fred dropped the apple, or Brian is a rhino.