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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: Fahad Azad, an engineer in India, invented a robot named DuctBot.The toy-car sized DuctBot measured 23 centimeters in length, 19 centimeters in width and 9 centimeters in height and weighs just two kilograms. The robot is designed to snake through dark, narrow air conditioning ducts and clean them.A pair of LEDs fitted on the robot light up the dirty scenery, so _ can be captured by a camera. In order to control it more easily, Mr. Azad chooses to fix DuctBot on wheels.The robot can clean off lots of dirt, as well as dead pigeons and insects.Keeping indoor air in good quality and monitoring carbon-dioxide levels in buildings with central air conditioning is a challenge.It is important in some places where clean air can mean a difference between life and death, such as hospitals.Dirty air has a bad influence on people's health. EPSCO, a Dubai-based company which specializes in improving indoor air quality, read about Mr. Azad's invention in a national newspaper after he had won an international robotics competition.EPSCO had cleaning equipment, but it needed someone to get into those ducts to do the dirty, dangerous work.Across India, for example, the task still falls to children.They are small enough to go through those ducts. In 2005, Mr. Azad who was still at university decided to do something about it.Six years later his own company, Robosoft Systems, has Bluestar, EPSCO and the Indian Navy, some leading air condition makers, as partners. Mr. Azad and his ten employees are currently exploring robot designs to examine oil tanks or sewage pipes.Their biggest challenge is to make the robots user-friendly enough.Mr. Azad hopes that the robot could eventually be operated not by engineers but by workers.There will be lots of difficulties they need to overcome in the future.
Answer: It is designed to move like a snake in the ducts.
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What can we learn about Ductbot?

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Article: Alzheimer's disease affects millions of people around the world. American researchers say the disease will affect more than one hundred million people worldwide by the year twenty fifty. That would be four times the current number. Researchers and doctors have been studying Alzheimer's patients for a century. Yet the cause and the cure for the mental sickness are still unknown. However, some researchers have made important steps towards understanding it. Several early signs of the disease involve memory and thought processes. At first, patients have trouble remembering little things. Later, they have trouble remembering more important things, such as the names of their children. There are also some physical tests that might show who is at risk of developing Alzheimer's disease. The tests look for proteins in brain and spinal cord fluid. The proteins appear to be found only in people with the disease. The protein tests correctly identify the presence of the disease in about ninety percent of patients. Now, a much simpler physical test to predict Alzheimer's risk has been developed. Researchers found that trouble with the sense of smell can be one of the first signs of Alzheimer's. Using this information, they developed a test in which people were asked to identify twelve familiar smells. These smells included cinnamon, black pepper, chocolate, paint thinner, and smoke. The study continued for five years. During this period, the same people were asked to take several tests measuring their memory and thought abilities. Fifty percent of those who could not identify at least four of the smells in the first test had trouble with their memory and thinking in the next five years. Another study has shown a possible way to reduce a person's chances of developing Alzheimer's disease in old age. Researchers in Chicago found that people who use their brains more often are less likely to develop Alzheimer's disease. Those who read a newspaper, or play chess or word games are about three times less likely to develop the condition. Researchers say they still do not know what causes Alzheimer's disease. But they say these findings might help prevent the disease in the future.
Answer: The patients of Alzheimer's disease.
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Whats the main idea of the passage?

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Article: Alex Taw,a 21yearold student from Wiltshire,England.He spent last summer like any other high school graduate--hanging out with friends,preparing for college,worrying about his university fees.While most of his peers gave up on their pipe dreams,he sat down with a notebook at home,and jotted down the question:How can I become a millionaire? The result was the MillionDollarHomepage.com.Alex's initial investment was 50 pounds to buy web space and a domain name.He divided the blank homepage into one million pixels ,10,000 blocks of 100 pixels each.Each pixel was worth $1 with minimum purchase 100 pixels.Within a month Alex had earned some $37,000,enough for him to cover the entire cost of his forthcoming three years at university.In just a few months,he became a real millionaire. How did he come up with the idea of the Million Dollar Homepage? "Well,I was trying to think of a way to make some money before I started university,as I was about to take on a huge debt and I was already overdrawn .Swift action was necessary!"He said. He also added,"The important thing is that anything is possible--we are only limited by our imagination.I always had this belief that a good idea can be successful on its own.I think I've learnt that if we think deeper there are magical solutions hiding away for us to find." His personal philosophy around money is:Money is not everything,but it's an essential part of the way we live. _ He also said,"I still want to go to university.Aside from gaining knowledge about business,there are other reasons--exploring your interests,meeting new people,and being in a creative environment." Besides making contributions to society,he would try to encourage and inspire people to think of creative solutions to problems,whatever they are.
Answer: Great investment.
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According to the passage,which of the following is NOT an important factor for being a millionaire?