It is certain that Greg is gray. It is almost certain that Gertrude is a mouse. It is probable that Daniel dropped the apple. It is almost certain that if Greg is gray, and Gertrude is a mouse, then Bernhard is a swan. Chances are about even that if either Gertrude is a mouse, or Daniel dropped the apple, then Mary went to the bedroom. There is a very good chance that if Gertrude is a mouse, and Greg is gray, then Bill moved to the garden.
It is highly unlikely that bill moved to the garden, or Greg is gray.
It is certain that bill moved to the garden, or Greg is gray.
It is highly unlikely that bill moved to the garden, or Greg is gray.
Bill moved to the garden, or Greg is gray.