Given the task definition, example input & output, solve the new input case.
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.
Output: How many books are there in the British Library?
In the Article, 10,000,000 is mentioned for the number of books available in the British Library, so this is a good question.

New input case for you: Article: Student Membership-----Cambridge Arts Cinema Cambridge Arts Cinema is one of the art houses in Britain and home of the internationally celebrated Cambridge Film Festival. Since 1947 generations of students have discovered the wealth of world cinema. Now you too can make most of it and save money. At the Arts you can... * choose from up to 40 films a month * see up to 8 premieres each month * catch screenings when you like--we open early and close late * increase your knowledge of film with our special events--each year we run seasons on various types of films and directors * meet the filmmakers What _ you _ get _ as _ a _ member: * invitation to a preview screening * PS1 off the standard prices(PS4.50/PS3.50)for any screening including special events * your own copy of each cinema programme mailed free of charge * a card with your own membership number * 50% off membership to the Cambridge Darkroom Gallery So what are you waiting for?Just fill in the form and return it either in person or by post to: Box Office Cambridge Arts Cinema 8 Market Passage Cambridge CN2 3PF It costs PS15 to join and your card can be used from 1st October 2011 to 30th June 2012. Cinema Information:01223 572929 (24hr) Box Office:01223 50444448.
Answer: The Cambridge Film Festival.
Output:
Which of the following is the most famous event held at Cambridge Arts Cinema?