Context: The London Underground (also known simply as the Underground, or by its nickname the Tube) is a public rapid transit system serving Greater London and some parts of the adjacent counties of Buckinghamshire, Essex and Hertfordshire in the United Kingdom., Railtrack was a group of companies that owned the track, signalling, tunnels, bridges, level crossings and all but a handful of the stations of the British railway system from 1994 until 2002. It was created as part of the privatisation of British Rail, listed on the London Stock Exchange, and was a constituent of the FTSE 100 Index. In 2002, after experiencing major financial difficulty, most of Railtrack's operations were transferred to the state-controlled non-profit company Network Rail. The remainder of Railtrack was renamed RT Group plc and eventually dissolved on 22 June 2010., Network Rail is the owner (via its subsidiary Network Rail Infrastructure Ltd which was known as Railtrack plc before 2003)) and infrastructure manager of most of the rail network in England, Scotland and Wales. Network Rail is an arms length public body of the Department for Transport with no shareholders, which reinvests its income in the railways., The Watford DC line is a commuter railway line from London Euston to Watford Junction. Services on the line are operated by London Overground. 
The line runs beside the West Coast Main Line (WCML) for most of its length. The London Underground Bakerloo line shares the track of the line from Queen's Park to Harrow & Wealdstone. The London Overground rolling stock used on the line is Class 378 "Capitalstar"., Wembley Arena (originally the Empire Pool and currently called the SSE Arena, Wembley for sponsorship reasons) is an indoor arena located in Arena Square, Engineers Way, Wembley Park, Wembley, London., The Bakerloo line is a line of the London Underground, coloured brown on the Tube map. It runs partly on the surface and partly at deep level, from Elephant and Castle in Central London, via the West End, to Harrow & Wealdstone in the north-western outer suburbs. The line serves 25 stations, of which 15 are below ground. It was so named because it serves "Baker" Street and Water"loo". North of Queen's Park (the section of the line above ground), the line shares tracks with London Overground's Watford DC Line and runs parallel to the West Coast Main Line., In Great Britain, National Rail is the trading name licensed for use by the Rail Delivery Group, an unincorporated association whose membership consists of the passenger train operating companies (TOCs) of Great Britain that run the passenger services previously provided by the British Railways Board, from 1965 using the brand name British Rail. National Rail generally does not include services that do not have a BR history; this distinction is important because National Rail services share a ticketing structure and inter-availability that do not necessarily extend to other services. The name and the accompanying double arrow symbol are the intellectual property of the Secretary of State for Transport., Buckinghamshire (or ), abbreviated Bucks, is a county in South East England which borders Greater London to the south east, Berkshire to the south, Oxfordshire to the west, Northamptonshire to the north, Bedfordshire to the north east and Hertfordshire to the east., South Kenton station is a Network Rail station served by London Underground Bakerloo line and London Overground trains . It is between Kenton to the north , and North Wembley to the south . It is located between The Link in the Sudbury Court Estate and Windermere Grove in South Kenton , in the Wembley postal area ., Hertfordshire (often abbreviated Herts) is a county in southern England, bordered by Bedfordshire to the north, Cambridgeshire to the north-east, Essex to the east, Buckinghamshire to the west and Greater London to the south. For government statistical purposes, it is placed in the East of England region., The Tube map is a schematic transport map of the lines, stations and services of London's public transport systems, the primary system being London Underground, known colloquially as "the Tube", hence the map's name. The first schematic Tube map was designed by Harry Beck in 1931, and it has since been expanded to also include today the Docklands Light Railway, London Overground, TfL Rail, Tramlink and the Emirates Air Line cable car., London is the capital and most populous city of England and the United Kingdom, as well as the most populous city proper in the European Union. Standing on the River Thames in the south east of the island of Great Britain, London has been a major settlement for two millennia. It was founded by the Romans, who named it "Londinium". London's ancient core, the City of London, largely retains its medieval boundaries. Since at least the 19th century, "London" has also referred to the metropolis around this core, historically split between Middlesex, Essex, Surrey, Kent, and Hertfordshire, which today largely makes up Greater London, governed by the Mayor of London and the London Assembly., Rapid transit, also known as heavy rail, metro, subway, tube, or underground, is a type of high-capacity public transport generally found in urban areas. Unlike buses or trams, rapid transit systems are electric railways that operate on an exclusive right-of-way, which cannot be accessed by pedestrians or other vehicles of any sort, and which is often grade separated in tunnels or on elevated railways., Wales is a country that is part of the United Kingdom and the island of Great Britain. It is bordered by England to the east, the Irish Sea to the north and west, and the Bristol Channel to the south. It had a population in 2011 of 3,063,456 and has a total area of . Wales has over of coastline and is largely mountainous, with its higher peaks in the north and central areas, including Snowdon, its highest summit. The country lies within the north temperate zone and has a changeable, maritime climate., The Department for Transport (DfT) is the government department responsible for the English transport network and a limited number of transport matters in Scotland, Wales and Northern Ireland that have not been devolved. The department is run by the Secretary of State for Transport, currently (since 14 July 2016) Chris Grayling., Wembley Stadium is a football stadium in Wembley, London, England, which opened in 2007, on the site of the original Wembley Stadium, which was demolished from 20022003. The stadium hosts major football matches including home matches of the England national football team, and the FA Cup Final. The stadium will be the temporary home of Premier League football club Tottenham Hotspur while White Hart Lane is being demolished and their new stadium is being constructed., Transport for London (TfL) is a local government body responsible for the transport system in Greater London, England. Its head office is in Windsor House in the City of Westminster., The London Borough of Brent is a London borough in north west London, and forms part of Outer London. The major areas are Kilburn, Wembley and Harlesden., England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west. The Irish Sea lies northwest of England and the Celtic Sea lies to the southwest. England is separated from continental Europe by the North Sea to the east and the English Channel to the south. The country covers five-eighths of the island of Great Britain (which lies in the North Atlantic) in its centre and south; and includes over 100 smaller islands such as the Isles of Scilly, and the Isle of Wight., The London Overground (also known as the Overground) is a suburban rail network in the United Kingdom. Established in 2007, it serves a large part of Greater London and parts of Hertfordshire, with 112 stations on several routes. The network forms part of the National Rail network, but under the franchise control and branding of Transport for London (TfL). Operation has been franchised to Arriva Rail London since 13 November 2016., Wembley is an area of northwest London, England, and part of the London Borough of Brent. It is home to the Wembley Arena and Wembley Stadium. Wembley formed a separate civil parish from 1894 and was incorporated as a municipal borough in 1937. In 1965, the area merged with the Municipal Borough of Willesden to create the London Borough of Brent, and has since formed part of Greater London., The West Coast Main Line (WCML) is the most important intercity rail passenger route in the United Kingdom, connecting the major cities of London, Birmingham, Coventry, Edinburgh, Glasgow, Liverpool and Manchester. which have a combined metropolitan population of over 24 million people. In addition, several sections of the WCML form part of the suburban railway systems in London, Birmingham, Manchester and Glasgow, with many more smaller commuter stations, as well as providing links to more rural towns. In 2008 the WCML handled 75 million passenger journeys., Willesden was a local government district in the county of Middlesex, England from 1874 to 1965. It formed part of the Metropolitan Police District and London postal district. Willesden was part of the built-up area of London and bordered the County of London to the east and south., Scotland (Scots: ) is a country that is part of the United Kingdom and covers the northern third of the island of Great Britain. It shares a border with England to the south, and is otherwise surrounded by the Atlantic Ocean, with the North Sea to the east and the North Channel and Irish Sea to the south-west. In addition to the mainland, the country is made up of more than 790 islands, including the Northern Isles and the Hebrides., Subject: south kenton station, Relation: located_in_the_administrative_territorial_entity, Options: (A) bedfordshire (B) berkshire (C) birmingham (D) bristol (E) buckinghamshire (F) cambridgeshire (G) centre (H) city of london (I) city of westminster (J) coventry (K) district (L) east (M) east of england (N) england (O) essex (P) glasgow (Q) greater london (R) hertfordshire (S) kent (T) london (U) london borough of brent (V) manchester (W) north (X) north west (Y) northamptonshire (Z) northern ireland ([) northwest (\) of (]) oxfordshire (^) river (_) scotland (`) south (a) split (b) stadium (c) surrey (d) united kingdom (e) wales (f) watford (g) wembley (h) west
Output: london borough of brent