It is impossible that Daniel left the apple. Chances are slight that Gertrude is a mouse. It is improbable that Julius is green. It is impossible that if either Julius is green, or Gertrude is a mouse, then Lily is a rhino. It is impossible that if Gertrude is a mouse, or Julius is green, then Greg is yellow. It is unlikely that if Daniel left the apple, or Julius is green, then John put down the milk.
It is impossible that either Greg is yellow, or Daniel left the apple.
It is impossible that either Greg is yellow, or Daniel left the apple.
It is likely that either Greg is yellow, or Daniel left the apple.
Either Greg is yellow, or Daniel left the apple.