question: Which construction company built the largest airport in the Upper Midwest region of Minnesota, Iowa, Nebraska, North Dakota, South Dakota, and Wisconsin?
answer: Poma-Otis Transit Company of Farmington, Connecticut
context: Title: Minneapolis–Saint Paul International Airport
  Passage: Minneapolis–Saint Paul International Airport (IATA: MSP, ICAO: KMSP, FAA LID: MSP) , also known as Wold–Chamberlain Field, is a joint civil-military public use international airport.  Located in a portion of Hennepin County, Minnesota, United States, outside of any city or school district, within 10 miles (16 km) of both downtown Minneapolis and downtown Saint Paul, it is the largest and busiest airport in the six-state Upper Midwest region of Minnesota, Iowa, Nebraska, North Dakota, South Dakota, and Wisconsin.
  Title: Prime Sports Upper Midwest
  Passage: Prime Sports Upper Midwest is a defunct American regional sports network that was owned by Hubbard Broadcasting and Liberty Media, and operated as an affiliate of the Prime Network.  Headquartered in Minneapolis, Minnesota, the channel broadcast regional coverage of sports events throughout the Upper Midwest region.  Prime Sports Upper Midwest was available on cable providers throughout Iowa, Minnesota, North Dakota, South Dakota and Wisconsin.
  Title: Minneapolis–St. Paul Airport Trams
  Passage: The Minneapolis–St. Paul Airport Trams consist of a pair of cable-drawn automated people movers that serve travelers of the Minneapolis–Saint Paul International Airport.  Both were constructed by the Poma-Otis Transit Company of Farmington, Connecticut and are operated under the direction of the Metropolitan Airports Commission.
  Title: Geography of Minnesota
  Passage: Minnesota is the most northern state outside of Alaska; its isolated Northwest Angle in Lake of the Woods is the only part of the 48 contiguous states lying north of the 49th parallel.  Minnesota is in the U.S. region known as the Upper Midwest.  The state shares a Lake Superior water border with Michigan and Wisconsin on the northeast; the remainder of the eastern border is with Wisconsin.  Iowa is to the south, North Dakota and South Dakota are west, and the Canadian provinces of Ontario and Manitoba are north.  With 87,014 sqmi , or approximately 2.26
citations: Minneapolis–St. Paul Airport Trams Minneapolis–Saint Paul International Airport