Information:  - A U.S. state is a constituent political entity of the United States of America. There are 50 states, which are bound together in a union with each other. Each state holds administrative jurisdiction over a defined geographic territory, and shares its sovereignty with the United States federal government. Due to the shared sovereignty between each state and the federal government, Americans are citizens of both the federal republic and of the state in which they reside. State citizenship and residency are flexible, and no government approval is required to move between states, except for persons covered by certain types of court orders (e.g., paroled convicts and children of divorced spouses who are sharing custody).  - Pennsylvania (Pennsylvania German: "Pennsylvaani"), officially the Commonwealth of Pennsylvania, is a state located in the northeastern and Mid-Atlantic regions of the United States. The Appalachian Mountains run through its middle. The commonwealth borders Delaware to the southeast, Maryland to the south, West Virginia to the southwest, Ohio to the west, Lake Erie and the Canadian province of Ontario to the northwest, New York to the north, and New Jersey to the east.  - The Great Lakes (also called the Laurentian Great Lakes, or the Great Lakes of North America) are a series of interconnected freshwater lakes located primarily in the upper mid-east region of North America, on the CanadaUnited States border, which connect to the Atlantic Ocean through the Saint Lawrence River. Consisting of Lakes Superior, Michigan, Huron (or MichiganHuron), Erie, and Ontario, they form the largest group of freshwater lakes on Earth, containing 21% of the world's surface fresh water by volume. The total surface is , and the total volume (measured at the low water datum) is . Due to their sea-like characteristics (rolling waves, sustained winds, strong currents, great depths, and distant horizons) the five Great Lakes have also long been referred to as "inland seas". Lake Superior is the second largest lake in the world by area, and Lake Michigan is the largest lake that is entirely within one country. The southern half of the Great Lakes is bordered by the Great Lakes Megalopolis.  - A county seat is an administrative center, seat of government, or capital city of a county or civil parish. The term is used in the United States, Canada, Romania, China and Taiwan. In the United Kingdom and Ireland, county towns have a similar function.  - Cleveland Arena was an arena in Cleveland , Ohio . It was built and privately financed by local businessman Albert C. Sutphin during the height of the Great Depression in 1937 as a playing site for Sutphin 's AHL team , the Cleveland Barons . The arena was located at 3717 Euclid Avenue , and seated 9,900 in the stands and 12,500 + for events such as boxing where floor seating was available . In addition to the Barons , the arena was the home venue for the Cleveland Rebels of the Basketball Association of America , also owned by Sutphin , for the 1946 -- 47 season , and hosted several games for the Cincinnati Royals of the National Basketball Association ( NBA ) , who played more than 35 of their home games there from 1966 - 1970 . The arena and the Barons were purchased by Nick Mileti in 1968 . In 1970 , the expansion Cleveland Cavaliers of the NBA moved into the arena and played there for their first four seasons , from 1970 -- 1974 . The Cleveland Crusaders of the new World Hockey Association began play in 1972 , hosting games there until 1974 . Cleveland Arena was also a regular concert and boxing venue . On March 21 , 1952 it was the site of the Moondog Coronation Ball , considered the first rock and roll concert , organized by Alan Freed . The concert was shut down after the first song by fire authorities due to overcrowding . It was estimated 20,000 people were either in the arena or trying to enter it , when the capacity was roughly half that . While the arena was a showpiece when it opened , by the time it closed in 1974 it had become decrepit and lacked adequate parking . It was replaced for sports and entertainment use by the Richfield Coliseum that year and demolished in 1977 . The headquarters of the Cleveland Chapter of the American Red Cross now occupies the site .  - A city is a large and permanent human settlement. Although there is no agreement on how a city is distinguished from a town in general English language meanings, many cities have a particular administrative, legal, or historical status based on local law.  - The Cuyahoga River (, or ) is a river in the United States, located in Northeast Ohio, that feeds into Lake Erie. The river is famous for having been so polluted that it "caught fire" in 1969. The event helped to spur the environmental movement in the US.   - The Rock and Roll Hall of Fame and Museum is a hall of fame and museum located on the shore of Lake Erie in downtown Cleveland, Ohio, United States. The Rock and Roll Hall of Fame Foundation was established on April 20, 1983, by Atlantic Records founder and chairman Ahmet Ertegun to recognize and archive the history of the best-known and most influential artists, producers, engineers, and other notable figures who have had some major influence on the development of rock and roll. In 1986, Cleveland was chosen as the hall of fame's permanent home. Since opening in September 1995, the "Rock Hall"  part of the city's redeveloped North Coast Harbor  has hosted more than 10 million visitors and had a cumulative economic impact estimated at more than $1.8 billion.  - Lake Erie is the fourth-largest lake (by surface area) of the five Great Lakes in North America, and the thirteenth-largest globally if measured in terms of surface area. It is the southernmost, shallowest, and smallest by volume of the Great Lakes and therefore also has the shortest average water residence time. At its deepest point Lake Erie is deep. Lake Erie's northern shore is bounded by the Canadian province of Ontario, with the U.S. states of Ohio, Pennsylvania, and New York on its southern and easternmost shores and Michigan on the west. These jurisdictions divide the surface area of the lake by water boundaries. The lake was named by the Erie people, a Native Americans people who lived along its southern shore. That Iroquoian tribe called it ""Erige"" "("cat")" because of its unpredictable and sometimes violently dangerous nature. It is a matter of conjecture whether the lake was named after the tribe, or if the tribe was called ""Erie"" because of its proximity to the lake.  - Ohio is an Eastern state in the Great Lakes region of the United States. Ohio is the 34th largest by area, the 7th most populous, and the 10th most densely populated of the 50 United States. The state's capital and largest city is Columbus.  - The Great Lakes region of North America is a bi-national Canadian-American region that includes portions of the eight U.S. states of Illinois, Indiana, Michigan, Minnesota, New York, Ohio, Pennsylvania and Wisconsin as well as the Canadian province of Ontario. The region borders the Great Lakes and forms a distinctive historical, economic, and cultural identity. A portion of the region also encompasses most of the Great Lakes Megalopolis, which extends outside the region to St. Louis, Missouri.  - Canals and navigations are human-made channels for water conveyance (supply), or to service water transport vehicles. In the vernacular, both are referred to as 'canals', and in most cases, the engineered works will have a series of dams and locks that create areas of low speed current flow. These areas are referred to as" 'slack water levels'," often just called 'levels'. The main difference between them is that a navigation parallels a river and shares part of its waters, its drainage basin and leverages its resources by building dams and locks to increase and lengthen its long stretches of "deep enough" slack water levels while staying in its valley. In contrast, a canal cuts across a drainage divide atop a ridge (however humble), generally requiring an external water source above the highest elevation. Many canals have been built at elevations towering over valleys and others water ways crossing far below. Cities need a lot of fresh water and many canals with sources of water at a higher level can deliver water to a destination where there is a lack of water. The Roman Empire's Aqueducts were such water supply canals.  - Cleveland is a city in the U.S. state of Ohio and the county seat of Cuyahoga County, the most populous county in the state. The city is located on the southern shore of Lake Erie, approximately west of the Pennsylvania border. It was founded in 1796 near the mouth of the Cuyahoga River, and became a manufacturing center owing to its location on the lake shore, as well as being connected to numerous canals and railroad lines. Cleveland's economy has diversified sectors that include manufacturing, financial services, healthcare, and biomedical. Cleveland is also home to the Rock and Roll Hall of Fame.    After reading the paragraphs above, we are interested in knowing the entity with which 'cleveland arena' exhibits the relationship of 'instance of'. Find the answer from the choices below.  Choices: - 1  - april  - border  - building  - cat  - city  - county  - county seat  - eight  - five  - foundation  - fresh water  - function  - government  - group  - hall  - hall of fame  - history  - home  - human  - human settlement  - identity  - jurisdiction  - lake  - language  - location  - matter  - museum  - ocean  - opening  - people  - province  - region  - republic  - ridge  - river  - rock  - saint  - sea  - seat  - series  - service  - settlement  - sharing  - state  - term  - territory  - the city  - transport  - union  - virginia  - will
building