Question: In which county is the city WLYN is licensed to broadcast to?

full_context: Document 1: Michael Berland: Michael Berland attended The Latin School of Chicago and graduated magna cum laude from the University of Massachusetts Amherst, where he was a Commonwealth Scholar. He received his initial training at the Social and Demographic Research Institute.
Document 2: Leverett Saltonstall I: Leverett Saltonstall (June 13, 1783 – May 8, 1845), was a member of the United States House of Representatives from Massachusetts who also served as Speaker of the Massachusetts House of Representatives, President of the Massachusetts Senate, the first Mayor of Salem, Massachusetts and a Member of the Board of Overseers of Harvard College.
Document 3: Cleon Turner: Cleon H. Turner (born December 29, 1945 in Brockton, Massachusetts) is a former state representative in Massachusetts. He represented the First Barnstable District of Brewster from 2005 to 2015. Turner graduated from Silver Lake Regional High School, earned his B.A. from the University of Southern Maine, an A.S. from the University of Maine and his J.D. from Suffolk University Law School. He was elected in 2004 and began his term in 2005. In December 2013, he announced his retirement effective January 6, 2015.
Document 4: History of radio: The next advancement was the vacuum tube detector, invented by Westinghouse engineers. On Christmas Eve 1906, Reginald Fessenden used a synchronous rotary - spark transmitter for the first radio program broadcast, from Ocean Bluff - Brant Rock, Massachusetts. Ships at sea heard a broadcast that included Fessenden playing O Holy Night on the violin and reading a passage from the Bible. This was, for all intents and purposes, the first transmission of what is now known as amplitude modulation or AM radio.
Document 5: Boston: Federally, Boston is split between two congressional districts. The northern three-fourths of the city is in the 7th district, represented by Mike Capuano since 1998. The southern fourth is in the 8th district, represented by Stephen Lynch. Both are Democrats; a Republican has not represented a significant portion of Boston in over a century. The state's senior member of the United States Senate is Democrat Elizabeth Warren, first elected in 2012. The state's junior member of the United States Senate is Democrat Ed Markey, who was elected in 2013 to succeed John Kerry after Kerry's appointment and confirmation as the United States Secretary of State.
Document 6: History of television: In 1928, WRGB (then W2XB) was started as the world's first television station. It broadcast from the General Electric facility in Schenectady, NY. It was popularly known as ``WGY Television ''.
Document 7: WRIU: When the station first signed on in 1964 (located at 91.9 on the dial at that time) WRIU's music format was mostly jazz, classical, some folk music, and easy listening. The station signal was 10 watts and coverage was generally just nearby to the Campus, sometimes reaching farther. When the station wished to expand in about 1971, installing a more powerful signal with updated facilities, the U.S. Federal Communications Commission (FCC) requirements included surveying the current and potential audience- mostly URI students- to show support for FCC approval of such expansion. A music listener survey was conducted by WRIU staff, collated, and results were published to help establish a new format based on the survey of listener preferences. This helped WRIU gain the support of URI students and the URI Student Senate, which voted to fund the purchase of equipment for expansion by about 1972. The new music format that was established in 1971 was unique in Rhode Island and continues, flexibly now inclusive of many new musical influences.
Document 8: WERS: WERS (88.9 FM) is one of Emerson College's two radio stations (the other being campus station WECB), located in Boston, Massachusetts. Student-run and professionally managed, it serves eastern New England an eclectic mix of musical genres, and more live performances than any other station in the region. Programming features over 20 different styles of music and news, including live performances and interviews. WERS stands as the first non-commercial radio station in New England, and has been in operation since November 1949. Among the founders of the station was WEEI program director Arthur F. Edes, who first taught broadcasting courses at Emerson in 1932 and helped to plan a campus radio station. The chief architect of WERS in its early years was Professor Charles William Dudley.
Document 9: WLYN: WLYN first signed on the air on December 11, 1947 as a daytime-only station. It operated at 500 watts, and the transmitter was located near the Fox Hill Bridge ("Lynn's New Radio" 15). The opening was covered by the city's two local newspapers, the "Lynn Daily Evening Item" and the "Lynn Telegram-News". The new station's president was A. (Avigdor) M. "Vic" Morgan, a veteran broadcaster who had been involved with mechanical television in TV's formative years; he had been the general manager of the Shortwave & Television Company in Boston in the early 1930s.. Among the air-staff were greater Boston radio veterans like Ned French and Raymond Knight. In charge of women's programming as well as public affairs and educational programs was Dorothy Rich; Mrs. Rich was also the radio director at Endicott Junior College in Beverly, Massachusetts ("Station WLYN," 21).
Document 10: Michael A. Costello: Michael A. Costello (born May 5, 1965 in Lynn, Massachusetts) is a former State Representative for the Massachusetts House of Representatives, who represented the first district of Essex County, Massachusetts. Costello graduated from Salem State University in 1989 with a Bachelor of Science, and from Suffolk University Law School with his Juris Doctor in 1996. Costello served in the House from 2003 to 2014.
Document 11: Joseph A. Melley: Joseph Aloysius Melley (March 1, 1902 – October 28, 1983) was a Massachusetts attorney and politician who served as the thirty ninth Mayor of Chelsea, Massachusetts, USA, and in both houses of the Massachusetts legislature.
Document 12: Oklahoma City: Oklahoma City was home to several pioneers in radio and television broadcasting. Oklahoma City's WKY Radio was the first radio station transmitting west of the Mississippi River and the third radio station in the United States. WKY received its federal license in 1921 and has continually broadcast under the same call letters since 1922. In 1928, WKY was purchased by E.K. Gaylord's Oklahoma Publishing Company and affiliated with the NBC Red Network; in 1949, WKY-TV (channel 4) went on the air and later became the first independently owned television station in the U.S. to broadcast in color. In mid-2002, WKY radio was purchased outright by Citadel Broadcasting, who was bought out by Cumulus Broadcasting in 2011. The Gaylord family earlier sold WKY-TV in 1976, which has gone through a succession of owners (what is now KFOR-TV is currently owned by Tribune Broadcasting as of December 2013).
Document 13: New York City: 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.
Document 14: History of radio: On February 17, 1919, station 9XM at the University of Wisconsin in Madison broadcast human speech to the public at large. 9XM was first experimentally licensed in 1914, began regular Morse code transmissions in 1916, and its first music broadcast in 1917. Regularly scheduled broadcasts of voice and music began in January 1921. That station is still on the air today as WHA.
Document 15: Jay Livingstone: Jay Livingstone is an American politician who has served in the Massachusetts House of Representatives since July 2013. He is a resident of Back Bay, Boston, a member of the Democratic Party. He won a special election to succeed Martha M. Walz, unopposed in the June 25 general election after winning the May 28 primary. He was sworn in July 17, 2013. He has since won re-election in 2014, 2016, and 2018.
ground_truth: Essex County
sub_queries: WLYN >> licensed to broadcast to Answer: Lynn
Lynn >> located in the administrative territorial entity Answer: Essex County