Once upon a time, there was a heavy ball. It was so big and round. One day, the ball saw its image in a mirror. It looked very funny.
The ball wanted to spin like a top. It tried and tried, but it was too heavy. The ball felt sad because it could not spin.
Then, a kind wind came and helped the heavy ball. The wind blew and blew, and the ball started to spin. It spun fast and round. The ball was so happy. It saw its image spinning in the mirror and laughed. The end.
