Read the beginning of the story. Now, complete it in about 150 words in your own way.
Once upon a time there lived a young boy named Arefin. He was very honest, sincere and industrious from his childhood. He thought about the welfare of mankind. One day, while returning from the nearest market....

The Sense of Responsibility of a Boy

Once upon a time there lived a young boy named Arefin. He was very honest, sincere and industrious from his childhood. He thought about the welfare of mankind. One day, while returning from the nearest market, he noticed that a small railway slipper was about to collapse. A little while later, he remembered that a mail train was supposed to cross in about half an hour. He remembered the story of his grandfather. His grandfather once told him "We should show red cloths to the driver if the train is in dangerous position anytime." Then he put off his shirt. His shirt's colour was red. He tried to move the shirt in the air. He tried to catch the attention of the driver. It was unbelievable that suddenly the driver could identify the boy's red shirt and thought about danger. The driver stopped the train. The driver got down from the train and found the damage of the rail line. The driver and all the passengers became astonished for the heroism of little boy.