Напишите маленький рассказ, который будет начинаться с once upon a time...

Once upon a time, three kittens and their mummy lived in a big city. They had a small house made from a cardboard box. Their mummy used to go hunting to the fish market every day. She used to bring a fish to her kittens every evening. Kittens used to go to the park to play with butterflies. They used to come back home every evening. Once one of the kittens got lost. All the stray cats of the city were looking for him. He met a little girl who took their entire family home, where they lived happily ever after.