An asian man walks down a gray-tiled walkway with his two daughters by a man sitting with his bike .
It is impossible that a man and his daughters walk down the sidewalk past a man on a bike .
It is certain that a man and his daughters walk down the sidewalk past a man on a bike .
It is impossible that a man and his daughters walk down the sidewalk past a man on a bike .
A man and his daughters walk down the sidewalk past a man on a bike .