Once upon a time, there was a dog named Spot. Spot had a collar. It was a flexible collar. He loved to play and run with his collar on. One day, Spot saw a big door. The door was locked. Spot wanted to go inside.
Spot asked his friend, Cat, "Can you help me open the door?" Cat said, "Yes, I can try!" Cat was very smart. She used her paw to unlock the door. The door opened, and Spot and Cat went inside.
Inside, they found a big, fun room. There were toys and treats. Spot and Cat played all day. They were so happy. In the end, they went back home. Spot said, "Thank you, Cat, for helping me." Cat said, "You're welcome, Spot. We are good friends."
