A man is climbing on top of some metal poles attached to each other .
Chances are about even that a man is climbing on some metal poles as he climbs K2 .
Chances are about even that a man is climbing on some metal poles as he climbs K2 .
It is impossible that a man is climbing on some metal poles as he climbs K2 .
A man is climbing on some metal poles as he climbs K2 .