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: Philadelphia, Pennsylvania is America's fifth largest city. Once a major American colonial city, it is the home of America's first library, its first hospital, and its first zoo. Now it is also the first US city to be named a World Heritage City. On November 6, 2015, Philadelphia joined more than 260 other cities that have been recognized for their influence on the world. These cities include Paris, France, Florence, Italy, and Cairo, Egypt. "Today marks the start of a new and exciting chapter in the history of Philadelphia," remarked Philadelphia Mayor Michael Nutter when the announcement was made. "As a World Heritage City, Philadelphia is being officially recognized on the global stage for its wealth of contributions to the world. To be named a World Heritage City, a city must be home to a UNESCO World Heritage site. UNESCO World Heritage sites are selected for their universal value and significance. For Philadelphia, the site is Independence Hall. Independence Hall is where two of the most important documents in US history--the Declaration of Independenceand theUS Constitution--were adopted. TheDeclaration of Independence, approved on July 4, 1776, united the 13 former British colonies and declared them independent from British rule. TheUS Constitution, signed in 1787, established the American democratic system of government. A democracy is a system of government in which the people elect their leaders. TheConstitutionlater spelled out the basic freedoms American citizens have. Philadelphia Deputy Mayor Alan Greenberger says the city's selection as a World Heritage City also reflects its educational, cultural, and economic achievements. The city is home to dozens of colleges and universities, and many museums, such as the Philadelphia Museum of Art. "Philadelphia has rightfully earned its place as one of the greatest cities in the world." Greenberger says.
Answer: The city really deserves the honor.
Output:
What opinion does Alan Greenberger hold?