Question: Copenhagen Central Post Building is located behind a station situated between which two districts ?
Context: Copenhagen Central Fire Station (Danish: Københavns Hovedbrandstation) is the headquarters of Copenhagen Fire Department and located on H.C. Andersens Boulevard just behind Copenhagen City Hall and opposite Tivoli Gardens.  It was designed by Ludvig Fenger and inaugurated in 1892. The New York Evening Post Building, also known as the New York Post Building or the Post Towers, is a historic commercial building located in Lower Manhattan, New York City, New York.  The building was designed by noted architect Horace Trumbauer and built in 1926. The Boulevard Line (Danish: "Boulevardbanen" ) is a 3.2 km long partly underground railway between Copenhagen Central Station and Østerport Station in Copenhagen, Denmark.  The quadruple track railway carries today one dual track for the Copenhagen S-train system and another dual track for the mainline railway and regional trains.  The line has two intermediate stations, Vesterport Station and Nørreport Station.  It continues above ground to Nordhavn station and at Svanemøllen station the tracks separate towards either Ryparken station or Hellerup station.  Dybbølsbro station is also located along this railway, located just a bit south of Copenhagen Central.  Out of the four main S-train branches, three follow this path, between Dybbølsbro and Svanemøllen (with at least four tracks).  Only at Copenhagen Central, Nørreport and Østerport do all trains stop.  While Dybbølsbro, Vesterport, Nordhavn and Svanemøllen all are S-train stations only.  (Nørreport also has Metro service, just as both the Central Station, Østerport and Nordhavn will have by 2019). There are 22 stations in the Copenhagen Metro, a driverless rapid transit system serving Copenhagen, Frederiksberg and Tårnby in Denmark.  Nine of these metro stations are underground, twelve are elevated, and one is street-level.  Christianshavn Station offers transfer between the system's two metro lines (M1 and M2), which share track between Vanløse and Christianshavn stations.  From Christianshavn, M1 branches south traveling to Vestamager Station, while M2 heads southeast to Lufthavnen Station, which serves Copenhagen Airport.  Flintholm, Nørreport and Vanløse stations offer transfer to the S-train, the city's other rapid transit system which the Copenhagen Metro was built to supplement.  Transfer from the Copenhagen Metro to regional trains is possible at Lufthavnen, Nørreport and Ørestad stations.  The City Circle Line, which is under construction and scheduled to open in 2019, is planned to have 17 stations, with transfer between the current and new lines at Frederiksberg and Kongens Nytorv stations.  The new lines will have a stop at Copenhagen Central Station (København H), the largest train station in Denmark. Copenhagen Central Post Building (Danish: Centralpostbygningen), located on Tietgensgade, just behind the Central Station, in the Vesterbro district of Copenhagen, Denmark, was originally built as a new headquarters for the Danish Post and Telegraph Company and now houses Post Danmark. Copenhagen Central Station (Danish: Københavns Hovedbanegård , abbreviated København H) is the main railway station in Copenhagen, Denmark and the largest railway station in Denmark, although Nørreport Station has a larger passenger throughput if urban S-train and Metro services are included.  It is situated between the districts of Indre By and Vesterbro with entrances from Bernstorffsgade (at Tivoli Gardens), Banegårdspladsen, Reventlowsgade and access to platforms from Tietgensgade. The Third Nunavut General Election took place on October 27, 2008, to return members to the 3rd Legislative Assembly of Nunavut.  The election was contested across 15 of Nunavut's 19 electoral districts under the first past the post system of voting.  Due to local circumstances, the election was delayed in two districts, and two districts did not hold elections as their incumbent MLAs faced no opposition and were acclaimed back into office. The Chief Post Office or Christchurch Central Post Office, originally known as the Government Building, is located in Cathedral Square, Christchurch, New Zealand.  The building was initially a post office with other government services.  Until the 2011 Christchurch earthquake, it was a Visitor Information Centre but has since been inaccessible, as access for the public to the central city has been removed.  It was the site of the first telephone exchange in New Zealand.  The structure is registered with Heritage New Zealand as a Category I heritage building. Vesterport Station (Danish: "Vesterport station" ) is a S-train station in the city centre of Copenhagen, Denmark.  The station is situated below ground level on the Boulevard Line, just before the tunnel connecting Copenhagen Central Station and Østerport Station.  Opened on 15 May 1934. Ingerslevsgade is a street in the Vesterbro district of Copenhagen, Denmark.  It begins on the rear side of Copenhagen Central Station and follows the northwest side of the railway tracks to Enghave station.  It also passes the Dybbølsbro station where Dybbøl Bridge connects it to Kalvebod Brygge and Havneholmen, Copenhagen on the other side of the railway tracks.  The street is named after the politician Hans Peter Ingerslev, who was involved in the construction of the Free Port of Copenhagen.
Answer: Indre By and Vesterbro