It is improbable that Winona is a mouse. We believe that Lily is gray. It is highly unlikely that Jessica is a cat. It is almost certain that if Winona is a mouse, or Lily is gray, then Sandra left the milk. It is probably not the case that if Lily is gray, and Jessica is a cat, then Julius is gray. It is highly likely that if either Lily is gray, or Winona is a mouse, then Brian is green.
There is a better than even chance that either Brian is green, or Julius is gray.
There is a better than even chance that either Brian is green, or Julius is gray.
Chances are slight that either Brian is green, or Julius is gray.
Either Brian is green, or Julius is gray.