Question: Which AM radio station is licensed to the commercial and cultural hub of The Mid-South or Ark-Miss-Tenn?

full_context: Document 1: WGN (AM): WGN, 720 kHz, is a commercial AM radio station in Chicago, Illinois, United States. The station is owned by Tribune Broadcasting (as the company's sole remaining radio station), and is one of several properties owned by the locally based Tribune Media, which also owns independent television station WGN-TV (Channel 9), and regional cable news channel Chicagoland Television (CLTV). The station's studios are located at the Tribune Tower on Michigan Avenue in the Chicago Loop, while its transmitter is located in Elk Grove Village. Since around 1990, WGN has maintained a news/talk format. WGN does not broadcast in HD.
Document 2: WOL (AM): WOL is an urban talk radio station in Washington, D.C. Broadcasting on 1450 AM, this is the flagship radio station of Radio One. It is co-owned with WKYS, WMMJ, WPRS and WYCB and has studios located in Silver Spring, Maryland. The transmitter site is in Fort Totten in Washington.
Document 3: South Memphis, Memphis, Tennessee: South Memphis, one of the oldest portions of Memphis, Tennessee, is a community stretching from Midtown and Downtown to the Mississippi state line. In its early days, it was primarily an agrarian community. South Memphis has many well-known neighborhoods including Whitehaven, Lauderdale Sub, Longview, Riverside, Lakeview Gardens, Prospect Park, Dukestown, Gaslight Square, Wilbert Heights, Alcy, Mallory Heights, Dixie Heights, Warren Park, Barton Heights, Elliston Heights, Handy Holiday, Chickasaw Village, Pine Hill, Indian Hills, Bunker Hill, Westwood, Boxtown, West Junction, Walker Homes, Coro Lake, Nehemiah, and French Fort. Many of these neighborhoods are considered home to many famous Hip Hop/R&B singers and rappers from old to new. Many locations in South Memphis are also considered a hotbed for crime and violence due to the high amount of gang influence and poverty level of the area. But South Memphis is known for its plentiful houses of worship including Mt Vernon Baptist Church Westwood, St Andrew AME Church, Washington Chapel CME Church, East Trigg Baptist Church, White's Chapel AME Church, Union Valley Baptist Church, Enon Springs Baptist Church, Warner Temple AME Zion Church, Unity Baptist Church, Ford's Chapel AME Zion Church, St. Augustine Catholic Church, and Monumental Baptist Church just naming a few.
Document 4: Quad Cities Metropolitan Area: The Quad Cities Metropolitan Area, more formally known as the Davenport-Moline-Rock Island Metropolitan Statistical Area is the metropolitan area associated with the Quad Cities and its suburbs in northwest Illinois and southeast Iowa. The Quad Cities Metropolitan Area is also considered part of the Great Lakes Megalopolis, and is the largest Metropolitan Area along the Mississippi River in Iowa and between Minneapolis–Saint Paul and the St. Louis metropolitan area. The Davenport-Moline-Rock Island Metropolitan Statistical Area consists of four counties: Scott County in Iowa and Henry, Mercer, and Rock Island counties in Illinois. The Quad City Metro population as of a 2013 estimate is 383,681 and a CSA population of 474,937, making it the 90th largest CSA in the nation.
Document 5: 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.
Document 6: WHP (AM): WHP (580 AM, "NewsRadio WHP 580") is a commercial AM radio station licensed to serve Harrisburg, Pennsylvania. The station is owned by iHeartMedia through licensee Clear Channel Broadcasting Licenses, Inc and broadcasts a talk radio format. The station's transmitter and six tower (directional) antenna array are located in East Pennsboro Township near Enola, Pennsylvania. WHP's signal is non-directional during daytime hours and is directed southeastward toward Harrisburg and Lancaster at night.
Document 7: WTMJ (AM): WTMJ is an AM radio station in Milwaukee, Wisconsin broadcasting at 620 kHz and at 94.5 FM HD-2. The station was the flagship radio station of the Journal Broadcast Group until April 2015, when it came under its current ownership of the E.W. Scripps Company. JBG also owned the Milwaukee Journal Sentinel, WTMJ-TV and sister radio station WKTI, along with other media assets across the U.S. (WTMJ remains owned with WTMJ-TV and WKTI, with the "Journal Sentinel" owned by the Journal Media Group spin-off until their April 2016 merger with Gannett). WTMJ maintains studio facilities located on Capitol Drive in Milwaukee (this Art Deco facility is known as "Radio City" in tribute to the New York complex of the same name), and its transmitter is located in Union Grove.
Document 8: KSL (radio): KSL Newsradio is a pair of radio stations located in Salt Lake City, Utah, which includes the original AM station KSL-AM (1160 kHz, licensed to Salt Lake City) and the FM station KSL-FM (102.7 MHz, licensed to Midvale). Both stations simulcast a format of All-News during key hours on weekdays and Talk programming the rest of the time. Owned by Bonneville International (a broadcasting subsidiary of The Church of Jesus Christ of Latter-day Saints), the stations share studios with sister television station KSL-TV in the Broadcast House building at the Triad Center in downtown Salt Lake City.
Document 9: List of people from Memphis, Tennessee: This is a list of notable people who were born in, residents of, or otherwise closely associated with Memphis, Tennessee, and its surrounding metropolitan statistical area, including Crittenden County, Arkansas; DeSoto County, Mississippi; Marshall County, Mississippi; Tate County, Mississippi; Tunica County, Mississippi; Fayette County, Tennessee; Shelby County, Tennessee; and Tipton County, Tennessee.
Document 10: WFLA (AM): WFLA 970 AM ("Newsradio 970 WFLA") is talk-formatted AM radio station in Tampa, Florida, serving the Tampa Bay media market. The station is owned and operated by iHeartMedia, Inc. Inc., the largest U.S. radio station owner. The station's studios are located in South Tampa and the transmitter site is in Town 'n' Country.
Document 11: Economy of Memphis, Tennessee: Located on the Mississippi River, Memphis is one of the largest metropolitan areas in the Southeast, ranking 41st out of the top 75 according to a Department of Labor Release. Of the 40 metropolitan areas ahead of Memphis, only 12 are in the South, according to the Census definition The city has historically been one of the largest shipping hubs in the Mid-South, dating back to the Civil War, when the port was one of the largest on the Mississippi River and served as a shipping hub for the Confederacy.
Document 12: WASR (AM): WASR (1420 kHz) is a commercial AM radio station broadcasting a Talk radio format, with an All-News morning show and Oldies music on weekends. WASR is licensed to Wolfeboro, New Hampshire, and serves the New Hampshire Lakes Region. The station is owned by Winnipesaukee Radio Station, LLC and uses programming from Westwood One and the Talk Radio Network with national news from CBS Radio News and Westwood One News. On March 23, 2015, the station added the Boston-based The Howie Carr Show. The station also carries Laura Ingraham, Clark Howard, Michael Savage and other nationally syndicated talk shows on weekdays. Overnight on weekdays, Fox Sports Radio is heard.
Document 13: 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 14: WREC: WREC (600 kHz) is an AM radio station broadcasting a Talk radio format, and calling itself "Newsradio 600 WREC". WREC is licensed to Memphis, Tennessee, and serves the Memphis metropolitan area. The station is owned by iHeartMedia, Inc. and operates with 5,000 watts day and night. The station also broadcasts on HD radio, on a subchannel of co-owned 102.7 WEGR. The station's studios are located in Southeast Memphis, and the transmitter site is in North Memphis.
Document 15: Portland metropolitan area, Maine: The city of Portland, Maine, is the hub city of a metropolitan area in southern Maine, in the United States. The region is commonly known as Greater Portland or the Portland metropolitan area. For statistical purposes, the U.S. federal government defines three different representations of the Portland metropolitan area. The Portland–South Portland–Biddeford, Maine, metropolitan statistical area is a region consisting of three counties in Maine, anchored by the city of Portland and the smaller cities of South Portland and Biddeford. As of the 2010 census, the MSA had a population of 514,098. A larger combined statistical area (CSA), the Portland–Lewiston–South Portland combined statistical area, is defined as the combination of this metropolitan statistical area (MSA) with the adjacent Lewiston–Auburn MSA. The CSA comprises four counties in southern Maine. The Portland–South Portland metropolitan New England city and town area is defined on the basis of cities and towns rather than entire counties. It consists of most of Cumberland and York counties plus the town of Durham in Androscoggin County.
ground_truth: WREC