Three kids in a martial arts class are in a stance ; each child has on a different color belt .
It is impossible that three kids in martial arts class are demonstrating different stances at a martial arts show .
Chances are about even that three kids in martial arts class are demonstrating different stances at a martial arts show .
It is impossible that three kids in martial arts class are demonstrating different stances at a martial arts show .
Three kids in martial arts class are demonstrating different stances at a martial arts show .