Gigi is my dog. It's black. It's two years old. It has three rings, four baseballs and a hat. The rings are white. They are in Gigi's house (狗窝). Two baseballs are green and two baseballs are red. In the morning, Gigi plays his baseballs on the sofa. In the afternoon, it plays them in his house. What color is the hat? The hat is brown. I buy (购买) it for Gigi. Where's the hat now? It's on Gigi's head.