Question: Kentucky is located in a region of america which constitutes as what?

full_context: Document 1: Louisville, Kentucky: Louisville ( , or ) is the largest city in the Commonwealth of Kentucky and the 29th-most populous city in the United States. It is one of two cities in Kentucky designated as first-class, the other being the state's second-largest city of Lexington. Louisville is the historical seat and, since 2003, the nominal seat of Jefferson County.
Document 2: East South Central States: The East South Central States constitute one of the nine Census Bureau Divisions of the United States.
Document 3: Kentucky: Kentucky ( , ), officially the Commonwealth of Kentucky, is a state located in the east south-central region of the United States. Although styled as the "State of Kentucky" in the law creating it, Kentucky is one of four U.S. states constituted as a commonwealth (the others being Virginia, Pennsylvania, and Massachusetts). Originally a part of Virginia, in 1792 Kentucky became the 15th state to join the Union. Kentucky is the 37th most extensive and the 26th most populous of the 50 United States.
Document 4: South Alabama: South Alabama is the various parts of southern Alabama. Although it is not a strictly defined geographic region, it generally includes all Alabama counties south of the Black Belt. However, residents of the largest population center, Mobile, often make the argument that the phrase refers only to the extreme southernmost parts of Alabama. In that view, "South Alabama" consists of just the two counties that border the Gulf of Mexico and Mobile Bay: Baldwin County and Mobile County. That area is characterized by extensive wetlands, but also by long, sandy beaches which are very conducive to tourism. Many deluxe golf courses have been developed in the area in recent decades.
Document 5: West Virginia: West Virginia is a state located in the Appalachian region of the Southern United States. It is bordered by Virginia to the southeast, Kentucky to the southwest, Ohio to the northwest, Pennsylvania to the north (and, slightly, east), and Maryland to the northeast. West Virginia is the 10th smallest by area, is ranked 38th in population, and has the second lowest household income of the 50 United States. The capital and largest city is Charleston.
Document 6: Southeastern Conference: The Southeastern Conference (SEC) is an American college athletic conference whose member institutions are located primarily in the Southern part of the United States. Its fourteen members include the flagship public universities of ten states, three additional public land grant universities, and one private research university. The conference is headquartered in Birmingham, Alabama. The SEC participates in the National Collegiate Athletic Association (NCAA) Division I in sports competitions; for football, it is part of the Football Bowl Subdivision (FBS), formerly known as Division I-A.
Document 7: Kentucky in the American Civil War: Kentucky was a border state of key importance in the American Civil War. President Abraham Lincoln recognized the importance of the Commonwealth when, in a September 1861 letter to Orville Browning, he wrote:
Document 8: Bluegrass region: The Bluegrass region (Shawnee: Eskippakithiki) is a geographic region in the U.S. state of Kentucky. It makes up the northern part of the state where a majority of the state's population has lived and developed its largest cities.
Document 9: Memphis metropolitan area: The Memphis-Forrest City Combined Statistical Area, TN-MS-AR (CSA) is the commercial and cultural hub of The Mid-South or Ark-Miss-Tenn. The census defined combined statistical area covers ten counties in three states – Tennessee, Mississippi, and Arkansas. As of census 2010 the MSA had a population of 1,324,108 . The Forrest City Micropolitan area was added to the Memphis area in 2012 to form the Memphis-Forrest City Combined Statistical area and had a population of 1,369,548 according to census estimates. The greater Mid-South area as a whole has a population of 2.4 million according to 2013 census estimates. This area is covered by Memphis local news channels and includes the Missouri Bootheel, Northeast Arkansas, West Tennessee, and North Mississippi.
Document 10: East Tennessee: East Tennessee comprises approximately the eastern third of the U.S. state of Tennessee, one of the three Grand Divisions of Tennessee defined in state law. East Tennessee consists of 33 counties, 30 located within the Eastern Time Zone and three counties in the Central Time Zone, namely Bledsoe, Cumberland, and Marion. East Tennessee is entirely located within the Appalachian Mountains, although the landforms range from densely forested 6000 ft mountains to broad river valleys. The region contains the major cities of Knoxville, Chattanooga and Johnson City, Tennessee's third, fourth and ninth largest cities, respectively.
Document 11: List of counties in Kentucky: This is a list of the one hundred and twenty counties in the U.S. state of Kentucky. Despite ranking 37th in size by area, Kentucky has 120 counties; depending on definitions, this is either third or fourth among U.S. states. Texas has 254 counties and Georgia 159; Virginia has only 95 counties, but also has 38 independent cities that are not part of any county and deal directly with the state government, giving that state 133 county-level administrative units. The original motivation for having so many counties was to ensure that residents in the days of poor roads and horseback travel could make a round trip from their home to the county seat and back in a single day, as well as being able to travel from one county seat to the next in the same fashion. Later, however, politics began to play a part, with citizens who disagreed with the present county government simply petitioning the state to create a new county. The 1891 Kentucky Constitution placed stricter limits on county creation, stipulating that a new county:
Document 12: Eastern Tennessee Seismic Zone: The Eastern Tennessee Seismic Zone (ETSZ), also known as the East Tennessee Seismic Zone and the Southern Appalachian Seismic Zone, is a geographic band stretching from northeastern Alabama to southwestern Virginia that is subject to frequent small earthquakes. The ETSZ is one of the most active earthquake zones in the eastern United States.
Document 13: Confederate government of Kentucky: The Confederate government of Kentucky was a shadow government established for the Commonwealth of Kentucky by a self-constituted group of Confederate sympathizers during the American Civil War. The shadow government never replaced the elected government in Frankfort, which had strong Union sympathies. Neither was it able to gain the whole support of Kentucky's citizens; its jurisdiction extended only as far as Confederate battle lines in the Commonwealth. Nevertheless, the provisional government was recognized by the Confederate States of America, and Kentucky was admitted to the Confederacy on December 10, 1861. Kentucky was represented by the central star on the Confederate battle flag.
Document 14: Southeast Kansas: Southeast Kansas is a region of the U.S. state of Kansas. It can be roughly defined by Woodson County in the northwest, Bourbon County in the northeast, Cherokee County in the southeast, and Montgomery County in the southwest. Geographically it is dominated by a broad rolling landscape located between the Flint Hills to the west and includes the Ozarks to the southeast. Some notable towns there include Pittsburg, Parsons, Coffeyville, Independence, Chanute, Fort Scott, and Iola. The region has a land area of 13,624.13 km² (5,260.30 sq mi) and a 2000 census population of 180,815 inhabitants. It has 6.43% of the state's land area and 6.726% of its population. It is dominated by a broad rolling landscape that includes the Ozarks. It receives more precipitation than any other part of Kansas. Southeast Kansas is located in the tallgrass prairie ecosystem of North America. Originally inhabited by several Native American tribes, frontier towns largely dependent on cattle ranching, and mining, were wracked by violence over the issue of slavery both before and during the American Civil War. Southeast Kansas offers one of the premier reconstructions of early life in the United States Army at Fort Scott National Historic Site.
Document 15: Tennessee: Tennessee ( ; Cherokee: ᏔᎾᏏ , "Tanasi " ) is a state located in the southeastern region of the United States. Tennessee is the 36th largest and the 16th most populous of the 50 United States. Tennessee is bordered by Kentucky and Virginia to the north, North Carolina to the east, Georgia, Alabama, and Mississippi to the south, and Arkansas and Missouri to the west. The Appalachian Mountains dominate the eastern part of the state, and the Mississippi River forms the state's western border. Nashville is the state's capital and largest city, with a population of 660,388. Tennessee's second largest city is Memphis, which has a population of 652,717.
ground_truth: one of the nine Census Bureau Divisions