A yellow-shirted runner runs with a number pinned to their shirt .
A naked runner has a number pinned to his beard .
A yellow-shirted runner runs with a number pinned to their shirt.
A naked runner has a number pinned to his beard.
One can either be yellow-shirted or naked. It can either be pinned to their shirt or their beard.
One can either be yellow-shirted or naked . It can either be pinned to their shirt or their beard .