Teacher: 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.
Teacher: Now, understand the problem? If you are still confused, see the following 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.
Solution: How many books are there in the British Library?
Reason: In the Article, 10,000,000 is mentioned for the number of books available in the British Library, so this is a good question.

Now, solve this instance: Article: Angry Birds is a video game developed by Finnish computer game developer Rovio Mohile. Inspired primarily by a sketch of stylized wingless birds, the game was first released for Apple's mobile operating system in December 2009.Since then, over 12 million copies of the game have been purchased from Apple's App Store. With its fast-growing popularity worldwide, the game and its characters---angry birds and their enemy pigs---have appeared in television programs throughout the world. The Israeli comedy A Wonderful Country ,one of the nation's most popular TV programs, satirized recent failed Israeli-Palestinian peace attempts by featuring the Angry Birds in peace negotiations with the pigs. Clips of the segment went _ getting viewers from all around the world. American television hosts Conan O'Brien ,Jon Steward ,and Daniel Tosh have referenced the game in comedy sketches for their programs, Conan, The Daily Show, and Dash. O. Some of the game's more famous fans include Prime Minister David Cameron of UK, who plays the iPad version of the game, and author Salman Rushdie, who is believed to be "something of a master at Angry Birds." Angry Birds and its characters have also been featured in advertisements in different forms. In March 2011,the characters began appearing in a series of advertisements for Microsoft's Bing search engine. In the same year, Nokin produced an advertisement in Austin, Texas that included the game's characters on a downtown building for its new mobile phone. Later, a T-Mobile advertisement filmed in Spain included a real-life mock-up of the game in a city center .Nokin also used the game in Malaysia to promote an attempt to set a world record for the largest number of people playing a single mobile game. Angry Birds has even inspired works of philosophical analogy .A five-part essay with the title" Angry Birds Yoga ---How to Eliminate the Green Pigs in Your Life" was written by Giridhari Dasar in Brazil ,utilizing the characters and game play mechanics to interpret various concepts of yoga philosophy. The piece attracted much media attention for its unique method of philosophical presentation.
Answer: To report on the spread of Angry Birds in different media around the world .
Student:
What is the purpose of the passage?