[Q]: Question: "What is Philadelphia known for besides education?" 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:
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[A]: economic hub

[Q]: Question: "Which entity does Samoa Rugby Football Union assist?" Context: "Rugby union is the national sport in Samoa and the national team, nicknamed the Manu Samoa, is consistently competitive against teams from vastly more populous nations. Samoa has competed at every Rugby World Cup since 1991, and made the quarter finals in 1991, 1995 and the second round of the 1999 world cup. At the 2003 world cup, Manu Samoa came close to beating eventual world champions, England. Samoa also played in the Pacific Nations Cup and the Pacific Tri-Nations The sport is governed by the Samoa Rugby Football Union, who are members of the Pacific Islands Rugby Alliance, and thus, also contribute to the international Pacific Islanders rugby union team." Answer:
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[A]: international Pacific Islanders rugby union team

[Q]: Question: "What was the main object in the mosaic?" Context: "The great Navicella mosaic (13051313) in the atrium of the Old St. Peter's is attributed to Giotto di Bondone. The giant mosaic, commissioned by Cardinal Jacopo Stefaneschi, was originally situated on the eastern porch of the old basilica and occupied the whole wall above the entrance arcade facing the courtyard. It depicted St. Peter walking on the waters. This extraordinary work was mainly destroyed during the construction of the new St. Peter's in the 17th century. Navicella means "little ship" referring to the large boat which dominated the scene, and whose sail, filled by the storm, loomed over the horizon. Such a natural representation of a seascape was known only from ancient works of art." Answer:
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[A]: large boat

[Q]: Question: "What honor does the non-commercial auditory venue previously run by the Big Apple hold?" Context: "New York is also a major center for non-commercial educational media. The oldest public-access television channel in the United States is the Manhattan Neighborhood Network, founded in 1971. WNET is the city's major public television station and a primary source of national Public Broadcasting Service (PBS) television programming. WNYC, a public radio station owned by the city until 1997, has the largest public radio audience in the United States." Answer:
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[A]:
has the largest public radio audience in the United States