Chances are slight that Lily is gray. It is unlikely that Julius is a frog. It is highly likely that Bernhard is white.
It is probably not the case that either Bernhard is white, or Julius is a frog.
We believe that either Bernhard is white, or Julius is a frog.
It is probably not the case that either Bernhard is white, or Julius is a frog.
Either Bernhard is white, or Julius is a frog.