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.
Example: 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.
Example solution: How many books are there in the British Library?
Example 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: Most Chinese people expect to relax and enjoy themselves during the Golden Week. But for those trying to go someplace,it may seem more disappointment than pleasure. This year, the severe traffic jam resulted in a roadside wedding. The suffering of being stuck in traffic was possibly most strongly felt by Lv Kangzhou and his bride Yan Mengxia. By tradition, the groom drove early in the morning to the bride's home in Zhejiang province in East China to pick her up along with her family and take them to his family's hometown for the wedding. By 4 p.m., Lv's wedding was 90 minutes away, but his car had not moved an inch for a long time. Lv contacted the local radio to explain his difficult situation and ask for a traffic forecast. The radio host told Lv there was no way he could hold his wedding on time and offered to hold their wedding on the air. At 5:30 p.m., Lv and his bride said their vows on the side of the road while Lv's family and friends witnessed the ceremony while listening to the radio. Lv wasn't the only person stuck in the Golden Week crowds. According to the state news agency Xinhua, 11.7 million people traveled by train Wednesday. It calculated that 120,000 people gathered at Tiananmen Square in Beijing to watch the flag raising ceremony. Last year, the Forbidden City in Beijing hosted 175,000 tourists on a single day during Golden Week, and the number is expecting to be even bigger this year. Chinese internet users routinely complain about the Golden Week holiday every year. As internet user Tuzhi said on Sina Weibo: "On the Great Wall, I'm holding your hand, but I cannot see your face."
Answer: The cause of the heavy traffic in China during the Golden Week.
Solution: What does the text mainly intend to tell us?