It is probably the case that Greg is a swan. It is certain that Mary went to the bedroom. It is probably the case that Jessica is a mouse. It is unlikely that if Jessica is a mouse, and Mary went to the bedroom, then Bernhard is a lion. It is highly unlikely that if either Mary went to the bedroom, or Greg is a swan, then Gertrude is a wolf. It is improbable that if Greg is a swan, and Jessica is a mouse, then Sandra left the milk.
It is almost certain that either Mary went to the bedroom, or Sandra left the milk.
It is almost certain that either Mary went to the bedroom, or Sandra left the milk.
Chances are slight that either Mary went to the bedroom, or Sandra left the milk.
Either Mary went to the bedroom, or Sandra left the milk.