One day, a big dog and a little cat were playing near a door. The big dog said, "Let's play a game. I will shut the door and we will see who can open it."
The little cat said, "Okay, but I am small. It may not be easy for me to open the door."
The big dog shut the door and they both tried to open it. The big dog pushed hard, but the door would not open. The little cat tried too, but it was not easy for her. They both felt sad and sat on the ground.
Then, a wise old bird saw them and asked, "Why are you both sad?"
The big dog told the bird about their game. The wise old bird said, "You should help each other. If you work together, it will be easy."
The big dog and the little cat listened to the wise old bird. They worked together and opened the door. They were happy and thanked the wise old bird. From that day, they always helped each other and learned that working together makes things easy.
