Once upon a time, there was a fast dog named Max. Max was very good at running. He liked to run all day. But Max had a chain. The chain was long and heavy. Max could not run far because of the chain.
One day, Max saw a big tree. The tree had many leaves. Max wanted to play near the tree. He thought, "If I run fast, maybe the chain will break." Max ran very fast. But the chain did not break. Max was sad. He had to remain near his house.
A few days later, Max saw a squirrel. The squirrel was on the big tree. Max wanted to catch the squirrel. He ran fast again. This time, the chain broke! Max was so happy. He could play near the big tree and catch the squirrel. Max learned that if he tried hard, he could break free and have fun.
