In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).

Example Input: Context: Kojo Adeyemo Annan ( born 25 July 1973 in Geneva , Switzerland ) is the only son of former UN Secretary - General Kofi Annan ., Nelson Rolihlahla Mandela (18 July 1918 5 December 2013) was a South African anti-apartheid revolutionary, politician, and philanthropist, who served as President of South Africa from 1994 to 1999. He was the country's first black head of state and the first elected in a fully representative democratic election. His government focused on dismantling the legacy of apartheid by tackling institutionalised racism and fostering racial reconciliation. Ideologically an African nationalist and socialist, he served as President of the African National Congress (ANC) party from 1991 to 1997.
A Xhosa, Mandela was born in Mvezo to the Thembu royal family. He studied law at the University of Fort Hare and the University of the Witwatersrand before working as a lawyer in Johannesburg. There he became involved in anti-colonial and African nationalist politics, joining the ANC in 1943 and co-founding its Youth League in 1944. After the National Party's white-only government established apartheida system of racial segregation that privileged whiteshe and the ANC committed themselves to its overthrow. Mandela was appointed President of the ANC's Transvaal branch, rising to prominence for his involvement in the 1952 Defiance Campaign and the 1955 Congress of the People. He was repeatedly arrested for seditious activities and was unsuccessfully prosecuted in the 1956 Treason Trial. Influenced by Marxism, he secretly joined the South African Communist Party (SACP). Although initially committed to non-violent protest, in association with the SACP he co-founded the militant Umkhonto we Sizwe in 1961 and led a sabotage campaign against the government. In 1962, he was arrested for conspiring to overthrow the state and sentenced to life imprisonment in the Rivonia Trial.
Mandela served 27 years in prison, initially on Robben Island, and later in Pollsmoor Prison and Victor Verster Prison. Amid growing domestic and international pressure, and with fears of a racial civil war, President F. W. de Klerk released him in 1990. Mandela and de Klerk negotiated an end to apartheid and organised the 1994 multiracial general election in which Mandela led the ANC to victory and became President. Leading a broad coalition government which promulgated a new constitution, Mandela emphasised reconciliation between the country's racial groups and created the Truth and Reconciliation Commission to investigate past human rights abuses. Economically, Mandela's administration retained its predecessor's liberal framework despite his own socialist beliefs, also introducing measures to encourage land reform, combat poverty, and expand healthcare services. Internationally, he acted as mediator in the Pan Am Flight 103 bombing trial and served as Secretary-General of the Non-Aligned Movement from 1998 to 1999. He declined a second presidential term and in 1999 was succeeded by his deputy, Thabo Mbeki. Mandela became an elder statesman and focused on combating poverty and HIV/AIDS through the charitable Nelson Mandela Foundation.
Mandela was a controversial figure for much of his life. Although critics on the right denounced him as a communist terrorist and those on the radical left deemed him too eager to negotiate and reconcile with apartheid's supporters, he gained international acclaim for his activism. Widely regarded as an icon of democracy and social justice, he received more than 250 honoursincluding the Nobel Peace Prizeand became the subject of a cult of personality. He is held in deep respect within South Africa, where he is often referred to by his Xhosa clan name, Madiba, and described as the "Father of the Nation"., Ghana, officially the Republic of Ghana is a unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic Ocean, in the subregion of West Africa. Spanning a land mass of 238,535km, Ghana is bordered by the Ivory Coast in the west, Burkina Faso in the north, Togo in the east and the Gulf of Guinea and Atlantic Ocean in the south. "Ghana" means "Warrior King" in the Soninke language., Kofi Atta Annan (born 8 April 1938) is a Ghanaian diplomat who served as the seventh Secretary-General of the United Nations from January 1997 to December 2006. Annan and the UN were the co-recipients of the 2001 Nobel Peace Prize. He is the founder and chairman of the Kofi Annan Foundation, as well as chairman of The Elders, an international organization founded by Nelson Mandela., Subject: kojo annan, Relation: country_of_citizenship, Options: (A) burkina faso (B) ghana (C) ivory coast (D) lawyer (E) politician (F) transvaal
Example Output: ghana

Example Input: Context: Watford is a town and borough in Hertfordshire, England, situated northwest of central London and inside the circumference of the M25 motorway. It is not to be confused with Watford, Northamptonshire which is 55 miles to the north., Chiltern Railways is a British train operating company owned by Arriva UK Trains that has operated the Chiltern Railways franchise since July 1996. It operates commuter/regional rail passenger services from its Central London terminus at London Marylebone along the M40 corridor to destinations in Buckinghamshire, Oxfordshire and Warwickshire, as well as long-distance services to the West Midlands along two routes. Services on the Chiltern Main Line run from London Marylebone to Birmingham Snow Hill, Stratford-upon-Avon and Oxford, with some peak-hour services to Kidderminster., Chesham (, or ) is a market town in the Chiltern Hills, Buckinghamshire, England. It is located 11 miles south-east of the county town of Aylesbury. Chesham is also a civil parish designated a town council within Chiltern district. It is situated in the Chess Valley and surrounded by farmland, as well as being bordered on one side by Amersham and Chesham Bois. The earliest records of Chesham as a settlement are from the second half of the 10th century although there is archaeological evidence of people in this area from around 8000 BC. Henry III granted the town a royal charter for a weekly market in 1257., The Metropolitan line is a London Underground line that runs from Aldgate, in the City of London, to Amersham and Chesham in Buckinghamshire, with branches to Watford in Hertfordshire, and Uxbridge in the London Borough of Hillingdon. Coloured magenta (Pantone 235) on the tube map, the line is in length and serves 34 stations. The section between Aldgate and Baker Street is shared with the Circle and Hammersmith & City lines; that between Rayners Lane and Uxbridge with the Piccadilly line; and that between Harrow-on-the-Hill and Amersham with Chiltern Railways. Just under 67million passenger journeys were made on the line in 2011/12. The line is one of only two London Underground lines to cross the Greater London boundary, the other being the Central line., Uxbridge is a town in west London, England, and the administrative headquarters of the London Borough of Hillingdon. Fifteen miles (24.1km) west-northwest of Charing Cross, it is one of the major metropolitan centres identified in the London Plan. Uxbridge historically formed part of the parish of Hillingdon in the county of Middlesex, and was a significant local commercial centre from an early time. As part of the suburban growth of London in the 20th century it expanded and increased in population, becoming a municipal borough in 1955, and has formed part of Greater London since 1965. It is a significant retail and commercial centre, and is the location of Brunel University and the Uxbridge campus of Buckinghamshire New University. The town is close to the boundary with Buckinghamshire, which is locally the River Colne., Pantone Inc. is a corporation headquartered in Carlstadt, New Jersey. The company is best known for its Pantone Matching System (PMS), a proprietary color space used in a variety of industries, primarily printing, though sometimes in the manufacture of colored paint, fabric, and plastics., Northwood Hills is a London Underground station on the Metropolitan line in the area of Northwood , between Northwood and Pinner stations and is in Travelcard Zone 6 ., 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., Aldgate was the eastern-most gateway through the London Wall leading from the City of London to Whitechapel and the East End of London. It gives its name to a City ward bounded by White Kennet Street in the north and Crutched Friars in the south, taking in Leadenhall and Fenchurch Streets, which remain principal thoroughfares through the City, each splitting from the short street named Aldgate that connects to Aldgate High Street. The road is situated east north-east of Charing Cross., 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., The London Borough of Hillingdon is the westernmost borough in Greater London, England which had a population of 273,936 according to the 2011 Census. It was formed from the districts of Hayes and Harlington, Ruislip-Northwood, Uxbridge, and Yiewsley and West Drayton in the historic county of Middlesex. Today, Hillingdon is home to Heathrow Airport and Brunel University, and is the second largest of the 32 London boroughs by area., 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., The City of London is a city and county within London. It constituted most of London from its settlement by the Romans in the 1st century AD to the Middle Ages, but the agglomeration has since grown far beyond the City's borders. The City is now only a tiny part of the metropolis of London, though it remains a notable part of central London. Administratively, it forms one of the 33 local authority districts of Greater London; however, the City of London is not a London borough, a status reserved for the other 32 districts (including London's only other city, the City of Westminster). , 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., Amersham is a market town and civil parish within Chiltern district in Buckinghamshire, England, north west of London, in the Chiltern Hills. It is part of the London commuter belt. Amersham is also from Aylesbury and from High Wycombe., The Piccadilly line is a line of the London Underground, coloured dark blue on the Tube map. It is the fourth busiest line on the Underground network on the basis of the number of passengers transported per year with 210,000,000. It is mainly a deep-level line, running from the north to the west of London via Zone 1, with a number of surface sections, mostly in its westernmost parts. It is named after the road above it between Hyde Park Corner and Piccadilly Circus. Some of its stations are shared with the District line and some are shared with the Metropolitan line. It is the second longest line on the system, after the Central line, and has the second most stations, after the District line. It serves many of London's top tourist attractions including Harrods (Knightsbridge), Hyde Park, Buckingham Palace (within walking distance from Green Park), Piccadilly Circus, Leicester Square and Covent Garden, as well as London Heathrow Airport, the busiest airport in Europe. The line shares tracks with the Metropolitan line between Uxbridge and Rayners Lane, and with the District line between Hanger Lane Junction and Acton Town, then runs parallel with the District line between Acton Town and Barons Court., In cryptography, MAGENTA is a symmetric key block cipher developed by Michael Jacobson Jr. and Klaus Huber for Deutsche Telekom. The name MAGENTA is an acronym for Multifunctional Algorithm for General-purpose Encryption and Network Telecommunication Applications. (The color magenta is also part of the corporate identity of Deutsche Telekom.) The cipher was submitted to the Advanced Encryption Standard process, but did not advance beyond the first round; cryptographic weaknesses were discovered and it was found to be one of the slower ciphers submitted., 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., Subject: northwood hills tube station, Relation: located_in_the_administrative_territorial_entity, Options: (A) amersham (B) baker (C) bedfordshire (D) buckinghamshire (E) cable (F) central (G) chesham (H) chiltern (I) colne (J) cross (K) district (L) east end of london (M) england (N) europe (O) greater london (P) hertfordshire (Q) hyde park (R) london (S) london borough of hillingdon (T) magenta (U) middlesex (V) most (W) new jersey (X) northwood (Y) of (Z) oxford ([) oxfordshire (\) piccadilly (]) river (^) road (_) south (') south east england (a) street (b) uxbridge (c) watford (d) west (e) west midlands (f) westminster (g) wycombe
Example Output: london borough of hillingdon

Example Input: Context: A bicycle chain is a roller chain that transfers power from the pedals to the drive-wheel of a bicycle, thus propelling it. Most bicycle chains are made from plain carbon or alloy steel, but some are nickel-plated to prevent rust, or simply for aesthetics., Coventry is a city and metropolitan borough in the West Midlands, England., British Leyland was an automotive engineering and manufacturing conglomerate formed in the United Kingdom in 1968 as British Leyland Motor Corporation Ltd (BLMC), following the merger of Leyland Motors and British Motor Holdings. It was partly nationalised in 1975, when the UK government created a holding company called British Leyland, later BL, in 1978. It incorporated much of the British-owned motor vehicle industry, which constituted 40 percent of the UK car market, with roots going back to 1895., The Swift Motor Company made Swift Cars in Coventry , England from 1900 until 1931 . It grew progressively from James Starley 's Coventry Sewing Machine Company , via bicycle and motorised cycle manufacture . The cars ranged from a single - cylinder car in 1900 using an MMC engine , through a Swift - engined twin - cylinder 7 - horsepower light car in 1904 , and a 3 - litre model in 1913 . After WW1 a successful range was sold during the 1920s , but the Cadet of 1930 was their last vehicle as they could not compete economically with volume manufacturers such as Ford and Morris Motors ., Morris Motors Limited was a British motor vehicle manufacturer formed in 1919 to take over the assets of WRM Motors Ltd., which had been put into voluntary liquidation. Though merged into larger organisations, the Morris name remained in use until 1984 when British Leyland's Austin Rover Group decided to concentrate on the more popular Austin brand. The trademark is currently owned by the China-based automotive company SAIC after being transferred from bankrupt subsidiary Nanjing Automotive., James Starley (21 April 1831 17 June 1881) was an English inventor and father of the bicycle industry. He was one of the most innovative and successful builders of bicycles and tricycles. His inventions include the differential gear and the perfection of the bicycle chain drive., A metropolitan borough is a type of local government district in England, and is a subdivision of a metropolitan county. Created in 1974 by the Local Government Act 1972, metropolitan boroughs are defined in English law as metropolitan districts. However, all of them have been granted or regranted royal charters to give them borough status (as well as, in some cases, city status). Metropolitan boroughs have been effectively unitary authority areas since the abolition of the metropolitan county councils by the Local Government Act 1985. However, metropolitan boroughs pool much of their authority in joint boards and other arrangements that cover whole metropolitan counties, such as combined authorities., Subject: swift motor company, Relation: country, Options: (A) carbon (B) china (C) england (D) united kingdom
Example Output:
united kingdom