Young children on a sled are being pulled through the snow .
It is almost certain that a boy and a girl on a sled are being pulled through the snow by an adult .
Chances are about even that a boy and a girl on a sled are being pulled through the snow by an adult .
It is almost certain that a boy and a girl on a sled are being pulled through the snow by an adult .
A boy and a girl on a sled are being pulled through the snow by an adult .