Question: What was rail line serviced the small commuter village that is on the River Witham and is 6 miles east of the city of Lincoln?

Context paragraphs:
KA Commuter Line Jatinegara–Bogor: KA Commuter Line Jatinegara–Bogor or the Jakarta Loop Line is a commuter rail line in Indonesia, operated by KA Commuter Jabodetabek.  The line connects Jatinegara station in East Jakarta and Bogor station in Bogor, West Java.  On maps and diagrams, the line is shown using the color "yellow" (     ).  The Jatinegara–Bogor line is the second busiest line in the Commuter Line system.  Covering the distance of 69.35 kilometres, it is the longest Commuter Jabodetabek line, combining the loop-line Jatinegara–Kampung Bandan–Tanah Abang–Manggarai with Manggarai–Depok–Bogor lines.

Five Mile House railway station: Five Mile House was a railway station on the Lincolnshire Loop Line which served the village of Fiskerton in Lincolnshire between 1848 and 1964.  Situated on the south bank of the River Witham, passengers on the north bank had to use a ferry to reach it.  It closed two years after opening due to low traffic, but reopened fifteen years later.  Withdrawal of passenger services took place in 1958, leaving the station open for anglers' excursions until 1964.  The Water Rail Way footpath now runs through the site.

Bracebridge Heath: Bracebridge Heath is a commuter village located approximately 2 mi south from the city and county town of Lincoln, England.  It lies at the junction of two major roads the A15 to Sleaford and the A607 to Grantham, and was (until modern systems of local government were introduced in the 19th century) part of the Boothby Graffoe Wapentake.  The village sits on top of Lincoln Cliff, overlooking Lincoln and the valley of the River Witham.  The Viking Way runs along the cliff top, a 147 mi long footpath, which runs from the Humber Bridge to Oakham.  Its population at the 2001 census was 4,530, increasing to 5,656 at the 2011 census.

N Line (RTD): The N Line, also known as the North Metro Rail Line during construction, is a commuter rail line which is part of the commuter and light rail system operated by the Regional Transportation District (RTD) in the Denver Metropolitan Area in Colorado.  The first 13 mile from downtown Denver to 124th Avenue in Thornton is under construction as part of the FasTracks expansion plan.  When fully built out the line will be 18.5 mile long and pass through Denver, Commerce City, Northglenn, and Thornton.  The N Line will have Colorado's longest bridge at 9,533 feet called the Skyway Bridge.

Spirit Creek: Spirit Creek is a creek located in the Assiniboine River watershed.  It begins near Rama, Saskatchewan generally following a line to the east.  2 miles east of Rama is the Spirit Creek Reservoir, the creek continues east.  At a point 2 miles west of Buchanan the creek turns to the South and crosses Highway 5 and the CN rail line.  It continues south east from the rail line before crossing Highway 754 it then continues to Highway 47 2 miles south of Buchanan.  From there the creek passes through Patterson Lake and finds its mouth at the northernmost end of Good Spirit Lake.

Tupholme Abbey: Tupholme Abbey was a Premonstratensian abbey close to the River Witham some 17 km east of the city of Lincoln, England.  It was founded between 1155 and 1165 by Gilbert and Alan de Neville.  An abbot and twelve canons were sent from Newsham Abbey, also in Lincolnshire, to found Tupholme.  The Witham valley in Lincolnshire is notable for its high concentration of monasteries—there were six on the east bank and three on the west—all presumably drawn to the area by the usefulness of the River Witham for transport and by the wealth (in wool) that it transported.

Fiskerton, Lincolnshire: Fiskerton is a small commuter village and civil parish in the West Lindsey district of Lincolnshire, England.  The population of the civil parish at the 2011 census was 1,209.  It is situated approximately 6 mi east from the city and county town of Lincoln, and on the north side of the River Witham.

River Witham: The River Witham is a river almost entirely in the county of Lincolnshire in the east of England.  It rises south of Grantham close to South Witham at [ SK8818] , passes Lincoln at [ SK9771] and at Boston, [ TF3244] , flows into The Haven, a tidal arm of The Wash, near RSPB Frampton Marsh.  The name "Witham" seems to be extremely old and of unknown origin.  Archaeological and documentary evidence shows the importance of the Witham as a navigation from the Iron Age onwards.  From Roman times it was navigable to Lincoln, from where the Fossdyke was constructed to link it to the River Trent.  The mouth of the river moved in 1014 following severe flooding, and Boston became important as a port.

Toluca–Mexico City commuter rail: The Toluca–Mexico City commuter rail (Spanish: "Tren Interurbano de Pasajeros Toluca-Valle de México") project is a 57.7 km commuter rail line currently under construction.  Also known as Interurban Train Mexico City–Toluca, the commuter rail line will connect the cities of Toluca and Mexico City.  The project was announced by President Enrique Peña Nieto on 1 December 2012.  Construction began in July 2014.  The commuter rail line is scheduled to open in 2018.

Witham Third District IDB: Witham Third District IDB is an English internal drainage board set up under the terms of the Land Drainage Act 1930.  The Board inherited the responsibilities of the Witham General Drainage Commissioners, who were first constituted by an Act of Parliament of 1762.  They manage the land drainage of an area to the north and east of the River Witham, between Lincoln and Dogdyke, which includes the valley of the River Bain to above Hemingby, and the valleys of Barlings Eau and most of its tributaries, to the north east of Lincoln.

Supporting paragraphs: Five Mile House railway station Fiskerton, Lincolnshire
Answer: Lincolnshire Loop Line