Chances are about even that Bernhard is gray. We doubt that Greg is a frog. It is impossible that Yann is bored.
It is impossible that bernhard is gray, and Yann is bored.
It is impossible that bernhard is gray, and Yann is bored.
There is a better than even chance that bernhard is gray, and Yann is bored.
Bernhard is gray, and Yann is bored.