It is certain that Greg is a rhino. It is unlikely that Bernhard is a lion. It is almost certain that Bill dropped the milk. Chances are about even that if either Bill dropped the milk, or Bernhard is a lion, then Sandra took the apple. It is highly likely that if Greg is a rhino, or Bernhard is a lion, then Mary went to the garden. It is almost certain that if Bill dropped the milk, or Greg is a rhino, then Brian is white.
There is little chance that either Sandra took the apple, or Bill dropped the milk.
There is a better than even chance that either Sandra took the apple, or Bill dropped the milk.
There is little chance that either Sandra took the apple, or Bill dropped the milk.
Either Sandra took the apple, or Bill dropped the milk.