Detailed Instructions: 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.
See one example below:
Problem: Article: There are a lot of public libraries in Britain. These libraries have more than one hundred and fifteen million books, not including those libraries of public schools. Public libraries not only lend books, music records but also help children, patients in hospitals and others to get special play readings, film shows and so on. The first public libraries were founded in about the year 1850. Today's public libraries usually have a reading-room, a lending room and a reference room. The greatest and most famous library in Britain is that of the British Library in London. It was founded in 1973 and has over 10, 000, 000 books. It has nearly every magazine, newspaper and book published in Britain and other parts across the world. 
 Answer: 10,000,000 or less.
Solution: How many books are there in the British Library?
Explanation: In the Article, 10,000,000 is mentioned for the number of books available in the British Library, so this is a good question.

Problem: Article: Food prices have risen sharply over the past few years. The good news is that the rate of increase has slowed. The bad news is that prices will not go down anytime soon. Also,the rate of global agricultural production is slowing. Yet it needs to increase 60% over the next 40 years to feed a growing world population. These are among the findings from the OECDFAO(the Organization for Economic Cooperation and Development & the Food and Agriculture Organization)Agricultural Outlook 2012-2021. FAO DirectorGeneral Jose Graziano da Silva spoke at a news conference in Rome when the report was released. Mr.Da Silva said that,not surprisingly,the world's poorest people will feel the greatest effects of higher prices. "For the millions and millions of extremely poor people, the effects of high food prices are clear--they might have to change their diets,usually to ones with poorer nutrition quality, "he said. In middleincome countries, people are gaining weight as they eat fewer fruits and vegetables and more of the cheaper but less nutritious foods. The report also shows that farmers in poorer countries will be leading efforts to feed an expected 9,000,000,000 people by 2050.The outlook predicts that farmers in Latin America,the Caribbean and subSaharan Africa will drive agricultural production in the future. Angel Gurria,SecretaryGeneral of the OECD,said:"We can feed 9,000,000,000 people by 2050 on this planet. But we have to organize ourselves better." But there are plenty of challenges.Onefourth of all agricultural land is damaged. Many countries face water shortages .And experts believe climate change is driving increasingly unusual weather patterns. The report says farmers need to use more growing methods that can't cause damage to the environment.At the same time,it says governments should end economically harmful supports and spend more money to increase agricultural production.Mr.Gurria says rich and poor nations need to treat agriculture more like a business. "In many cases,agriculture is related in people's minds to the poorest. It's related to aid. It's related to very poor living conditions,etc. We have got to shake that image away,"he said. 
 Answer: They eat less nutritious foods.
Solution:
Why are people gaining weight in countries with average incomes?