Question: Which organization manages the Colne and Blackpool South railway stations?
Context: Đà Nẵng Railway Station is one of the main railway stations on the North–South Railway (Reunification Express) in Vietnam and one of the five largest stations in Vietnam.  It serves the city of Đà Nẵng. Squires Gate railway station serves the Squires Gate area of the popular seaside resort of Blackpool, Lancashire, England, although it is located just outside the borough boundary.  It lies on the Blackpool South to Colne line and is the nearest station to Blackpool International Airport.  Squires Gate is located about 400 m from Starr Gate tram stop on the Blackpool Tramway. Hanoi Railway Station is one of the main railway stations on the North–South Railway (Reunification Express) in Vietnam.  It serves the city of Hanoi.  The station is located at 120 Lê Duẩn Street, Cua Nam Ward, Hoan Kiem District of Hanoi and is the starting point of five railway lines leading to almost every Vietnamese province.  Train street is very famous narrow gap railway line were train moving very tight space inbetween old houses in HaNoi. Bình Thuận Railway Station ("Ga Bình Thuận") is one of the main railway stations on the North–South Railway in Vietnam.  It serves the city of Phan Thiết.  Phan Thiết has its own railway station (Phan Thiet Station), but it is not located on the main North–South Railway.  The old name of this station is Mương Mán Station.  Some Reunification Express trains stop only at Mương Mán. St Annes-on-the-Sea railway station serves the town of St Annes-on-the Sea, commonly known as St Annes, which is part of the conurbation of Lytham St Annes in Lancashire, England.  It is located on the Blackpool South to Preston railway line 3+1/4 mi south-southeast of Blackpool South. Blackpool South railway station serves the suburban south of the popular seaside resort of Blackpool, Lancashire, England.  It is the terminus of the "South Fylde Line" 12+1/4 mi west of by rail, though most services run through from Colne.  It lies only a short walk from Blackpool Football Club's stadium at Bloomfield Road.  The station is managed by Northern, who operate all trains serving it.  Blackpool South is located about 500 m from Waterloo Road tram stop on the Blackpool Tramway. Colne railway station serves the Lancashire mill town of Colne, England, which is situated close to Pendle Hill.  The station, which is managed by Northern, is the eastern terminus of the East Lancashire Line.  Trains from Blackpool South run through Preston and Blackburn to Burnley and Colne. Blackpool Pleasure Beach railway station serves Blackpool Pleasure Beach theme park.  It is the penultimate station before Blackpool South on the Blackpool South to Colne line.  There are no free tickets or other concessions for passengers wishing to visit the Pleasure Beach.  Pleasure Beach Station is located about 300 m from Burlington Road West tram stop on the Blackpool Tramway. Line 7 of the Guangzhou Metro () or Panyu Line () runs across Panyu District.  Line 7's color is light green.  Line 7 is envisioned as tangential line that runs across southeast Guangzhou and Foshan, allowing for orbital traffic between the suburbs of Shunde, Panyu and Huangpu to avoid the crowded city center stations.  The first section starts at Guangzhou South Railway Station and ends at Higher Education Mega Center South, interchanging with Line 2 at Guangzhou South Railway Station, Line 3 at Hanxi Changlong, and Line 4 at Higher Education Mega Center South.  The total length is 17.1 km with 10 stations.  The plan for west extension of the first phase from Guangzhou South Railway Station to Meidi Dadao in Shunde District, Foshan was approved in October, 2015.  The construction of the west extension began in June, 2016.  The west extension is expected to be operational in 2020.  The first phase of the line (Guangzhou South — HEMC South) was opened on December 28, 2016. This is a list of former railway stations and railway lines in Victoria, Australia.  Many of these stations and lines have been abandoned or demolished.  For closed railway stations in suburban Melbourne, see List of closed railway stations in Melbourne.
Answer: Northern