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In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.
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Article: Born with easy-broken bone disease, Zhang Yonghong is only half a meter tall and must use a wheelchair. His thin arms and legs can hardly support any weight, and he is unable to take care of himself. However, his hands are able to produce fine paper-cuts, which will free his daughter from the same disease. To support himself, he learned how to make paper-cut art from his mother. He sold his artwork and taught his techniques in Xi'an for eight years before discovering his young daughter _ the disease from him, leading Zhang to move his family to Beijing for his daughter's better treatment five years ago. The daughter's treatment costs about 30,000 yuan a year. The family's savings was used up in two years, and Zhang was forced to start to sell his work in underground passages with his healthy wife, who soon left him because of the hard life. With a little help from government, he was lucky to meet some kindhearted people in Beijing. A Hong Kong businessman gave 60,000 yuan to him last year to treat the girl and start a small shop on Qiangulouyuan, which is known as a famous hutong that attracts lots of tourists over holidays. Zhang Rui, a university graduate, spends most of her time helping Zhang sell the paper-cuts, translating the stories of the paper-cuts into English and selling the works on the roadside of Nanluoguxiang. However, the artist still lives beyond his income   and struggles to continue his small business. "Selling paper-cuts is his only source of income. Without this, he can't support the family and treat his daughter," says Zhang Rui, who hopes more people will help Zhang. 
 Answer: His easy-broken bone disease affected him.
answer:
Why did Zhang grow only half a meter tall?


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Article: Jayson McCarthy, 12, was born without fingers on his left hand. That didn't stop him from being able to do many tasks. But Jayson could not grasp more than one object at a time. So Jayson 's father, Paul, created a Prosthesis , using a 3D printer. Now Jayson has fingers that open and close. "It was a do-it-yourself, father-and-son adventure," says Paul. When Jayson was a baby, his doctor advised his parents not to give him a prosthetic hand until he was in his early teens. "The doctor said Jayson should first learn to get full use out of the hand he was born with," says Paul. As Jayson got older, his father looked into _ a prosthetic hand, which can cost as much as $30,000. Paul found a more affordable solution. One day, Paul discovered a video on the Internet about Robohand, a prosthesis created with a 3D printer. He downloaded the free instructions and called Robohand's creators for advice. They told him all he needed was a 3D printer--which costs around $2,000--and some materials. Luckily, Jayson 's school had recently purchased a 3D printer and it offered to help Paul build the hand for Jayson n. "We used a soccer shinguard , cardboard , and tape. They cost about $10," says paul. With his new hand, Jayson can do things better. "I can help my mom more, because now I can carry two grocery bags," he says. Jayson 's father has already built several hands for Jayson. Jayson helps design each one. He says there's one thing in particular that he wants to do with a future prosthesis. "The goal," he says, "is to be able to tie my shoelaces ." 
 Answer: The original hand could do many tasks.
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Why did Jayson 's doctor disapprove of  his using a prosthesis in his childhood?


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Article: "You know, Chihuahuas aren't actual dogs. They're a kind of fox," announced a woman at a party. This woman entirely believed that Chihuahuas are the descendants   of the Fennec fox. Many people might believe this: Chihuahuas are similar to foxes in their appearance with long-haired Chihuahuas appearing almost indistinguishable from their wild counterparts . The idea that Chihuahuas are related to foxes isn't uncommon. Even the American Kennel Club, which is usually a highly respected source of information, accepts the belief and the similarity between Chihuahuas and Fennec foxes. Interesting as it is to imagine that Chihuahuas are a breed   of the fox, this idea simply can't hold water. Chihuahuas are, in fact, far more closely related to dingoes  or wolves than they are to Fennec foxes. Like other dogs, Chihuahuas are able to breed with other members within the same species. The Fennec fox is a member of a different species. Chihuahuas and Fennec foxes are fairly distantly related just like a cat and a tiger are. Their similarities occur only because of a phenomenon known as convergent evolution , in which animals develop similar features to meet similar biological needs.  A simple observation of geography further denies the idea that Fennec foxes and Chihuahuas are related. While the Fennec fox was living in the deserts of Africa, the Chihuahua came from Mexico, where it got its common name. Its closest living  s are other native Central and South American breeds. Its ancestor, the now nearly-extinct Mexican gray wolf, is also a much closer   to the Chihuahua than any other fox. It is common to consider the cute Chihuahua as a little Fennec fox adapted to life, but this theory is not true. Chihuahuas are domestic  dogs to the same degree as other dogs. Much as a Chihuahua might look like a fox, it is--and always will be--a dog. 
 Answer: They partly have the features of foxes in appearance.
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Why did the woman say Chihuahuas are a kind of fox?


