In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

Input: Consider Input: Article: The world has a fast growing population and people need more land for houses, factories, highways, and so on. The farmland is decreasing with each passing day. How to meet the need of feeding the growing population? One way is to introduce some high-output gene into a crop to enable it to produce more. Biologists over the years have discovered genes which can raise output of the crops, resist pests, improve taste, etc. However, in many western countries there is widespread concern over the safety of"Genetically Modified"(GM) foods, because they think there may be serious problems of environment, health, safety, morality and so on. As a scientist I must admit GM foods involve great risks to humans. In fact in Europe they're called "Frankenstein foods" by many. Frankenstein is a character in a novel. He was a very clever scientist. He created a monster , which eventually killed him. Soybeans can be made into many foods. However, it's hard to _ . Therefore, it's very important we have to make sure the soybean, if genetically modified, is free from any poisonous matter harmful to human beings. For this we need very good testing. We do have some testing on some animals, but no completely satisfactory testing has ever been made so far. They're entirely new, and their problems are entirely unknown. It takes time to develop persuasive tests to know whether they're harmful to us or not. We may not be able to tell what may happen if we take GM foods. Some of them may be resistant to antibiotics . Then many of the medicines we have today will have no effect on people eating GM foods. A more likely case is the GM foods may contain genes some people are allergic to. GM products have already come into our lives but most people even know nothing about it. At least we have to be clear about what we are eating. The China Consumers Association is calling for labeling on GM foods so that consumers will know before they buy them.
Answer: feed the fast growing population

Output: The chief purpose of developing GM foods is to _ .

Input: Consider Input: Article: My father was a foreman of a sugar-cane plantation in Rio Piedras, Puerto Rico. My first job was to drive the oxen that ploughed the cane fields. I would walk behind an ox, guiding him with a broomstick. For $ 1 a day, I worked eight hours straight, with no food breaks. It was very _ work, but it prepared me for life and taught me many lasting lessons. Because the plantation owners were always watching us, I had to be on time every day and work as hard as I could. I've never been late for any job since. I also learned about being respectful and faithful to the people you work for. More important, I earned my pay; it never entered my mind to say I was sick just because I didn't want to work. I was only six years old, but I was doing a man's job. Our family needed every dollar we could make because my father never earned more than $ 18 a week. Our home was a three-room wood shack with a dirty floor and no toilet. Nothing made me prouder than bringing home money to help my mother, father, two brothers and three sisters. This gave me self-esteem , one of the most important things a person can have. When I was seven, I got work at a golf course near our house. My job was to stand down the fairway and spot the balls as they landed, so the golfers could find them. Losing a ball meant you were fired, so I never missed one. Some nights I would lie in bed and dreamt of making thousands of dollars by playing golf and being able to buy a bicycle. The more I dreamed, the more I thought. Why not? I made my first golf club out of guava limb and a piece of pipe. Then I hammered an empty tin can into the shape of a ball. And finally I dug two small holes in the ground and hit the ball back and forth. I practiced with the same devotion and intensity . I learned working in the field -- except now I was driving golf balls with club, not oxen with a broomstick .
Answer: to spot the balls as they landed so the golfers could find them

Output: The writer's first job was _ .

Input: Consider Input: Article: DNA tells the story of the race to discover the structure of DNA, and the scientists who changed our understanding of the world and everything in it. The five-part series, to be broadcast from Thursday July 14 at 8:30 p.m. on ABC TV, also looks at the scientists' work for the future of mankind. The scientists were a small group of pioneers who explored a world too small to see. What they found there answered some eternal questions--What is life? How is it made ? Why are children like their parents? DNA is without doubt the most powerful substance on earth. The order of its chemicals determines whether a child has her mother's eyes or her father's smile. But as DNA shows, until 50 years ago, almost no one knew of its existence. All that changed when two unknown scientists - Jim Watson and Francis Crick -ran into a pub in Cambridge shouting that they'd found the secret of life. This declaration heralded a momentous discovery, not just for the human race but for the people involved. As this program shows, it was one of the most heated scientific races the world has ever seen. Dr Watson takes us back 50 years, guiding us through the tumultuous events that led to the creation of a double helix model being built by Dr Francis Crick and himself. He tells how he and Crick try hard to find the double helix first and win the Noble Prize. The program shows others involved with the DNA story, including Maurice Wilkins, who helped create the atom bomb. He became disillusioned with the science of death and chose the science of life instead, by looking for the structure of DNA.
Answer: give a TV program summary
Output: The purpose in writing this text is to _ .