Question: Which region is the city containing Togus located?

full_context: Document 1: Medford, Massachusetts: Medford is a city 3.2 miles northwest of downtown Boston on the Mystic River in Middlesex County, Massachusetts, United States. In the 2010 U.S. Census, Medford's population was 56,173. It is home to Tufts University.
Document 2: The Orthopedic Specialty Hospital: The Orthopedic Specialty Hospital (TOSH) was founded in 1991 and is a facility located in Murray, Utah, United States, at the former Intermountain Healthcare Cottonwood Hospital location. It includes 36 clinical patient rooms, ten surgery suites, a human performance research laboratory, a 25-meter lap pool, a full weight and exercise room, and a rehabilitation center.
Document 3: Wisconsin Veterans Museum: The Wisconsin Veterans Museum, located on Capitol Square in Madison, Wisconsin, USA, is dedicated to the soldiers of the state of Wisconsin.
Document 4: The Tote Hotel: The Tote Hotel (1980) is a hotel, pub, bar and music venue on 71 Johnston Street, the corner of Johnston and Wellington Streets, in Collingwood, an inner city suburb of Melbourne, Victoria, Australia. The first hotel was built sometime in the mid-19th century and in 1876 the Ivanhoe Hotel opened on the site and remained operating until the name change to "The Tote" in 1980 when the venue began hosting local and Australian punk, post-punk, heavy metal and hardcore bands.
Document 5: Boston: Boston is surrounded by the "Greater Boston" region and is contiguously bordered by the cities and towns of Winthrop, Revere, Chelsea, Everett, Somerville, Cambridge, Watertown, Newton, Brookline, Needham, Dedham, Canton, Milton, and Quincy. The Charles River separates Boston from Watertown and the majority of Cambridge, and the mass of Boston from its own Charlestown neighborhood. To the east lie Boston Harbor and the Boston Harbor Islands National Recreation Area (which includes part of the city's territory, specifically Calf Island, Gallops Island, Great Brewster Island, Green Island, Little Brewster Island, Little Calf Island, Long Island, Lovells Island, Middle Brewster Island, Nixes Mate, Outer Brewster Island, Rainsford Island, Shag Rocks, Spectacle Island, The Graves, and Thompson Island). The Neponset River forms the boundary between Boston's southern neighborhoods and the city of Quincy and the town of Milton. The Mystic River separates Charlestown from Chelsea and Everett, and Chelsea Creek and Boston Harbor separate East Boston from Downtown, the North End, and the Seaport.
Document 6: Grand Army of the Republic: After the end of American Civil War, various state and local organizations were formed for veterans to network and maintain connections with each other. Many of the veterans used their shared experiences as a basis for fellowship. Groups of men began joining together, first for camaraderie and later for political power. Emerging as most influential among the various organizations during the first post-war years was the Grand Army of the Republic, founded on April 6, 1866, on the principles of ``Fraternity, Charity and Loyalty, ''in Decatur, Illinois, by Dr. Benjamin F. Stephenson.
Document 7: Surgeon General of the United States: In 1798, Congress established the Marine Hospital Fund, a network of hospitals that cared for sick and disabled seamen. The Marine Hospital Fund was reorganized along military lines in 1870 and became the Marine Hospital Service -- predecessor to today's United States Public Health Service. The service became a separate bureau of the Treasury Department with its own staff, administration, headquarters in Washington, D.C, and the position of Supervising Surgeon (later Surgeon General).
Document 8: Boston: Boston has an area of 89.6 square miles (232.1 km2)—48.4 square miles (125.4 km2) (54.0%) of land and 41.2 square miles (106.7 km2) (46.0%) of water. The city's official elevation, as measured at Logan International Airport, is 19 ft (5.8 m) above sea level. The highest point in Boston is Bellevue Hill at 330 feet (100 m) above sea level, and the lowest point is at sea level. Situated onshore of the Atlantic Ocean, Boston is the only state capital in the contiguous United States with an oceanic coastline.
Document 9: Boston: Boston is surrounded by the "Greater Boston" region and is contiguously bordered by the cities and towns of Winthrop, Revere, Chelsea, Everett, Somerville, Cambridge, Newton, Brookline, Needham, Dedham, Canton, Milton, and Quincy. The Charles River separates Boston from Watertown and the majority of Cambridge, and the mass of Boston from its own Charlestown neighborhood. To the east lie Boston Harbor and the Boston Harbor Islands National Recreation Area (which includes part of the city's territory, specifically Calf Island, Gallops Island, Great Brewster Island, Green Island, Little Brewster Island, Little Calf Island, Long Island, Lovells Island, Middle Brewster Island, Nixes Mate, Outer Brewster Island, Rainsford Island, Shag Rocks, Spectacle Island, The Graves, and Thompson Island). The Neponset River forms the boundary between Boston's southern neighborhoods and the city of Quincy and the town of Milton. The Mystic River separates Charlestown from Chelsea and Everett, and Chelsea Creek and Boston Harbor separate East Boston from Boston proper.
Document 10: Chelsea, Alabama: Chelsea is a city in Shelby County, Alabama, United States. It is part of the Birmingham metropolitan area. Chelsea was incorporated on March 1, 1996, with a population of 906. At the 2000 census the population was 2,949. According to the U.S. Census Bureau, the 2010 population for Chelsea was 10,183. Its seasonal campsite for visitors is Hargis Retreat which began in 1984. Chelsea is widely considered the fastest growing city in Shelby County, which is the fastest growing county in the state of Alabama.
Document 11: Boston: Many of Boston's medical facilities are associated with universities. The facilities in the Longwood Medical and Academic Area and in Massachusetts General Hospital are affiliated with Harvard Medical School. Tufts Medical Center (formerly Tufts-New England Medical Center), located in the southern portion of the Chinatown neighborhood, is affiliated with Tufts University School of Medicine. Boston Medical Center, located in the South End neighborhood, is the primary teaching facility for the Boston University School of Medicine as well as the largest trauma center in the Boston area; it was formed by the merger of Boston University Hospital and Boston City Hospital, which was the first municipal hospital in the United States.
Document 12: Togus, Maine: Togus is a facility operated by the United States Department of Veterans Affairs in Chelsea, Maine. The facility was built as a resort hotel, and housed Union veterans of the American Civil War prior to being converted to a veterans hospital. It was the first veterans facility developed by the United States government.
Document 13: Memorial Day: In 1868, copying a southern annual observance, General John A. Logan of the Grand Army of the Republic, an organization of Union veterans founded in Decatur, Illinois, established Decoration Day as a time for the nation to decorate the graves of the Union war dead with flowers. By the 20th century, various Union and Confederate memorial traditions, celebrated on different days, merged, and Memorial Day eventually extended to honor all Americans who died while in the military service.
Document 14: Massachusetts: Commonwealth of Massachusetts Flag Seal Nickname (s): The Bay State Motto (s): Ense petit placidam sub libertate quietem (Latin) By the sword we seek peace, but peace only under liberty State song (s): ``All Hail to Massachusetts ''Official language English Spoken languages English 77.4% Spanish 8.6% Portuguese 2.8% Chinese 2.1% Demonym Bay Stater (official) Massachusite (traditional) Massachusettsian Capital (and largest city) Boston Largest metro Greater Boston Area Ranked 44th Total 10,565 sq mi (27,336 km) Width 183 miles (295 km) Length 113 miles (182 km)% water 25.7 Latitude 41 ° 14 ′ N to 42 ° 53 ′ N Longitude 69 ° 56 ′ W to 73 ° 30 ′ W Population Ranked 15th Total 6,811,779 (2016 est.) Density 840 / sq mi (324 / km) Ranked 3rd (9) Median household income $67,861 (7th) Elevation Highest point Mount Greylock 3,489 ft (1063.4 m) Mean 500 ft (150 m) Lowest point Atlantic Ocean sea level Before statehood Province of Massachusetts Bay Admission to Union February 6, 1788 (6th) Governor Charlie Baker (R) Lieutenant Governor Karyn Polito (R) Legislature General Court Upper house Senate Lower house House of Representatives U.S. Senators Elizabeth Warren (D) Ed Markey (D) U.S. House delegation 9 Democrats (list) Time zone Eastern: UTC - 5 / - 4 ISO 3166 US - MA Abbreviations MA, Mass. Website www.mass.gov
Document 15: Chelsea, Massachusetts: Chelsea is a city in Suffolk County, Massachusetts, United States, directly across the Mystic River from the city of Boston. As of 2013, Chelsea had an estimated population of 36,828. It is also the second most densely populated city in Massachusetts behind Somerville. With a total area of just 2.21 square miles, Chelsea is the smallest city in Massachusetts in terms of total area.
ground_truth: Suffolk County
sub_queries: Togus >> located in the administrative territorial entity Answer: Chelsea
Chelsea >> located in the administrative territorial entity Answer: Suffolk County