With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Philadelphia is not home to the first U.S. medical school.
text_B: Philadelphia -LRB- -LSB- ˌfɪləˈdɛlfi.ə -RSB- -RRB- is the largest city in the Commonwealth of Pennsylvania and the sixth-most populous city in the United States , with an estimated population of 1,567,872 and more than 6 million in the seventh-largest metropolitan statistical area , .. Commonwealth. Commonwealth ( U.S. state ). Philadelphia. Philadelphia County, Pennsylvania. Pennsylvania. Pennsylvania. sixth-most populous. List of United States cities by population. seventh-largest metropolitan statistical area. List of Metropolitan Statistical Areas. Philadelphia is the economic and cultural anchor of the Delaware Valleya region located in the Northeastern United States at the confluence of the Delaware and Schuylkill Rivers with 7.2 million people residing in the eighth-largest combined statistical area in the United States .. Philadelphia. Philadelphia County, Pennsylvania. Northeastern United States. Northeastern United States. Delaware. Delaware River. Schuylkill. Schuylkill River. eighth-largest combined statistical area. Table of United States Combined Statistical Areas. In 1682 , William Penn , an English Quaker , founded the city to serve as capital of the Pennsylvania Colony .. William Penn. William Penn. Pennsylvania. Pennsylvania. Quaker. Quakers. Pennsylvania Colony. Province of Pennsylvania. Philadelphia played an instrumental role in the American Revolution as a meeting place for the Founding Fathers of the United States , who signed the Declaration of Independence in 1776 and the Constitution in 1787 .. Philadelphia. Philadelphia County, Pennsylvania. American Revolution. American Revolution. Founding Fathers of the United States. Founding Fathers of the United States. Declaration of Independence. United States Declaration of Independence. Constitution. United States Constitution. Several other key Philadelphia events during the Revolution include the First and Second Continental Congress , the preservation of the Liberty Bell , the Battle of Germantown , the Siege of Fort Mifflin , and the Philadelphia Convention .. Liberty Bell. Liberty Bell#Early days ( 1754–1846 ). Philadelphia. Philadelphia County, Pennsylvania. First. Continental Congress. Second Continental Congress. Second Continental Congress. Battle of Germantown. Battle of Germantown. Siege of Fort Mifflin. Siege of Fort Mifflin. Philadelphia Convention. Constitutional Convention ( United States ). Philadelphia was one of the nation 's capitals in the Revolutionary War , and served as temporary U.S. capital while Washington , D.C. , was under construction .. Philadelphia. Philadelphia County, Pennsylvania. Democratic Party ( United States ). capitals. List of capitals in the United States. Revolutionary War. American Revolutionary War. In the 19th century , Philadelphia became a major industrial center and railroad hub that grew from an influx of European immigrants .. Philadelphia. Philadelphia County, Pennsylvania. immigrants. Immigration. The majority of European immigrants have come from Ireland , Italy and Germany -- the three largest reported ancestry groups in the city .. immigrants. Immigration. The city became a prime destination for African Americans during the Great Migration of the 20th century , as well as Puerto Ricans , surpassing two million occupants by 1950 .. African Americans. African Americans. Great Migration. Great Migration ( African American ). Puerto Ricans. Puerto Ricans in the United States. 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 .. Philadelphia. Philadelphia County, Pennsylvania. With a gross domestic product of $ 388 billion , Philadelphia ranks ninth among world cities and fourth in the nation .. Philadelphia. Philadelphia County, Pennsylvania. Philadelphia is the center of economic activity in Pennsylvania and is home to seven Fortune 1000 companies .. Philadelphia. Philadelphia County, Pennsylvania. Pennsylvania. Pennsylvania. Fortune 1000. Fortune 1000. The Philadelphia skyline is growing , with a market of almost 81,900 commercial properties in 2016 including several nationally prominent skyscrapers .. Philadelphia. Philadelphia County, Pennsylvania. United States Census Bureau. Philadelphia skyline. Philadelphia skyline. The city is known for its arts , culture , and rich history , attracting over 41 million domestic tourists alone in 2015 .. Philadelphia has more outdoor sculptures and murals than any other American city .. Philadelphia. Philadelphia County, Pennsylvania. Fairmount Park , when combined with the adjacent Wissahickon Valley Park in the same watershed , is one of the largest contiguous urban park areas in the United States .. Fairmount Park. Fairmount Park. Wissahickon Valley Park. Wissahickon Valley Park. watershed. Drainage basin. urban park. urban park. The 67 National Historic Landmarks in the city helped account for the $ 10 billion generated by tourism .. National Historic Landmarks. List of National Historic Landmarks in Philadelphia. Philadelphia is the birthplace of the United States Marine Corps , and is also the home of many U.S. firsts , including the first library -LRB- 1731 -RRB- , first hospital -LRB- 1751 -RRB- and medical school -LRB- 1765 -RRB- , first Capital -LRB- 1777 -RRB- , first stock exchange -LRB- 1790 -RRB- , first zoo -LRB- 1874 -RRB- , and first business school -LRB- 1881 -RRB- .. Philadelphia. Philadelphia County, Pennsylvania. United States Marine Corps. United States Marine Corps. firsts. List of Pennsylvania firsts. library. Library Company of Philadelphia. hospital. Pennsylvania Hospital. medical school. Perelman School of Medicine at the University of Pennsylvania. Capital. Carpenters' Hall. stock exchange. Philadelphia Stock Exchange. zoo. Philadelphia Zoo. business school. Wharton School of the University of Pennsylvania. Philadelphia is the only World Heritage City in the United States .. Philadelphia. Philadelphia County, Pennsylvania. World Heritage City. Organization of World Heritage Cities
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