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.
One example is below.
Q: 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.
A: How many books are there in the British Library?
Rationale: In the Article, 10,000,000 is mentioned for the number of books available in the British Library, so this is a good question.
Q: Article: China is the country with the largest population in the world. Too many people cause many problems such as food problem. And today, China's population is still growing very fast. So in order to control the population, China has formulated the policy of family planning, that is late marriage, late childbirth and having fewer but healthier children. Men of 22 years old and women of 20 years can get married. If a man of 25 or over 25 gets married with a wo-man of 23 or over 23 , their marriage is late marriage. Childbirth by a woman at the age of 23 or late is a late childbirth. The country encourages people to have only one child. Family planning is a useful policy to control China's population. And it is still needed in China in the following years.
Answer: China's family planning
A:
What is the passage about?