question:Question: What is notable about Philadelphia? Context: The area's many universities and colleges make Philadelphia a top international study destination, as the city has evolved into an educational and economic hub. With a gross domestic product of 388 billion, Philadelphia ranks ninth among world cities and fourth in the nation. Philadelphia is the center of economic activity in Pennsylvania and is home to seven Fortune 1000 companies. The Philadelphia skyline is growing, with several nationally prominent skyscrapers. The city is known for its arts, culture, and history, attracting over 39 million domestic tourists in 2013. Philadelphia has more outdoor sculptures and murals than any other American city, and Fairmount Park is the largest landscaped urban park in the world. The 67 National Historic Landmarks in the city helped account for the 10 billion generated by tourism. Philadelphia is the birthplace of the United States Marine Corps, and is also the home of many U.S. firsts, including the first library (1731), first hospital (1751) and medical school (1765), first Capitol (1777), first stock exchange (1790), first zoo (1874), and first business school (1881). Philadelphia is the only World Heritage City in the United States. Answer

question:this question asking for an animal, an organ of the body, a color, creative piece, currency, disease or medicine, event, food, musical instrument, language, letter, plant, product, religion, sport, substance, symbol, technique, term, vehicle, word, other entity? What are fingernails made of ?

question:Are the questions Why do Japanese act unnaturally in doramas? and Why don't women understand that staring is hardcoded in men and opposing it means making men unnatural (see the video) ? asking the same thing?

question:Assume it is true that How to rack a pool table<br>Start off with the 1ball at the front of the rack. This is also called the apex of the rack Make sure that the 8ball is in the center of the rack. The center of the rack is the middle of the triangle. Therefore, Pool tables are quite heavy. is guaranteed, possible, or impossible?