Siyao extends her arm to hold her father's hand i on the train on their way to Sichuan from Beijing. The two children begged their parents not to "sell them" after they found out about adoption. Siyao said to Li, "Daddy, I have figured it out. I should be a grown up about it. You should have me adopted. You can look at my photos if you miss me. When your disease is cured, you can buy me back." [Photo/qq.com]