Chances are slight that Julius is a swan. Chances are about even that Bill moved to the garden. Chances are about even that Sandra grabbed the apple.
Chances are about even that either Sandra grabbed the apple, or Bill moved to the garden.
Chances are about even that either Sandra grabbed the apple, or Bill moved to the garden.
There is almost no chance that either Sandra grabbed the apple, or Bill moved to the garden.
Either Sandra grabbed the apple, or Bill moved to the garden.