Chances are slight that Yann is tired. It is unlikely that Greg is white. It is unlikely that Winona is a mouse. We doubt that if Yann is tired, or Greg is white, then John moved to the garden. Chances are slight that if either Greg is white, or Winona is a mouse, then Bill went to the kitchen. There is a better than even chance that if either Winona is a mouse, or Greg is white, then Brian is a frog.
It is probably the case that john moved to the garden, or Greg is white.
We doubt that john moved to the garden, or Greg is white.
It is probably the case that john moved to the garden, or Greg is white.
John moved to the garden, or Greg is white.