a man walks across a rooftop in the city with a kite flying overhead .
A man is sitting inside .
a man walks across a rooftop in the city with a kite flying overhead.
A man is sitting inside.
A man cannot be walking if he is sitting . a man cannot be on the roof if he is inside.
A man can not be walking if he is sitting . a man can not be on the roof if he is inside .