We believe that Julius is a lion. Chances are slight that Winona is a mouse. There is almost no chance that Mary went to the office. It is impossible that if Mary went to the office, or Winona is a mouse, then Lily is white. There is a better than even chance that if Mary went to the office, and Winona is a mouse, then Greg is a lion. There is little chance that if Mary went to the office, or Julius is a lion, then Brian is gray.
There is little chance that either Brian is gray, or Mary went to the office.
There is little chance that either Brian is gray, or Mary went to the office.
There is a better than even chance that either Brian is gray, or Mary went to the office.
Either Brian is gray, or Mary went to the office.