Once upon a time, there was a zoo. In the zoo, there were many animals. There was a big lion, a tall giraffe, and a funny monkey. They all lived happily in the zoo.
One day, the funny monkey wanted to make the big lion laugh. The monkey said, "Hey lion, why are you always so serious? Let's play and laugh together!" The lion looked at the monkey and thought about it.
The monkey started to dance and make funny faces. The big lion couldn't help but laugh. He laughed and laughed, and soon the tall giraffe joined in too. They all laughed and played together, having lots of fun. From that day on, the big lion was not so serious anymore. They all became good friends and lived happily in the zoo.
