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: About a year ago,if you had asked who Dinara Safina was,the answer would have been,"She is Marat Safin's younger sister." She was overshadowed by her wonder brother.But now she has made a name for herself:the world No.1 player in women's tennis. The 22yearold Russian overtook Serena Williams of the US for top ranking on April 20."Before,every place I go,I am Marat's sister.Nothing else,"she told New York Times."I always wanted to be myself,and now finally the results come,and people can know me as Dinara Safina." Safina has made it to two great event finals,in the 2008 French and in the 2009 Australian Open,and won a silver medal in the Beijing Olympic Games. Clearly,family isn't the only connection Safina and her brother share.Their DNA burns with competitive fire.Safin has held the distinction for years of being a hottempered player on court.When he lost his temper,he would smash a racket .Safina is as emotionally explosive as her brother.A headline in the newspaper The Australian once described her as "mad as a snake".The Sydney Morning Herald,during the Australian Open,summed up Safina's volatile emotional state with the headline--Safina goes from basket case to top of the world. It's not rare for a family to have two top tennis players.Safina's father owns a tennis academy and her mother worked as a coach."I had no choice but to become a tennis player,but I don't mind being a tennis player," Safina said. From this talented family she is also given one of her best weapons on court,her size.She is 1.82 meters tall and weighs 70kg.But it is hard work that led her to her recent success. "I hope to prove to everyone over the coming months that I deserve the honor of being world No.1,"she said.
Answer: How Safina came first in women's tennis.
Solution: What is the passage mainly about?