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: Insar is a river in the Mordovian republic of Russia. It is a right tributary of the Alatyr River. It is 168 km long, with a drainage basin of 3860 km². The river gets most of its water from melting snow, and hence its discharge is at its highest during the spring thaw. Average discharge at Saransk is 7,71 m³/s. The river freezes over in November, and is icebound until April., Russia (from the  Rus'), also officially known as the Russian Federation, is a country in Eurasia. At , Russia is the largest country in the world by surface area, covering more than one-eighth of the Earth's inhabited land area, and the ninth most populous, with over 140 million people at the end of March 2016. The European western part of the country is much more populated and urbanised than the eastern, about 77% of the population live in European Russia. Russia's capital Moscow is one of the largest cities in the world, other major urban centers include Saint Petersburg, Novosibirsk, Yekaterinburg, Nizhny Novgorod and Samara., In geography, a confluence is the meeting of two or more bodies of water. Also known as a "conflux", it refers either to the point where a tributary joins a larger river, (main stem), or where two streams meet to become the source of a river of a new name, such as the confluence of the Monongahela and Allegheny rivers in Pittsburgh, Pennsylvania creating the Ohio River., FC Biokhimik - Mordovia Saransk ( Russian : ``  -  '' (  ) ) was a Russian football team from Saransk . It played professionally in 1992 -- 1993 and 1996 -- 2004 . In 2005 it merged into FC Mordovia Saransk . Their best result was 4th place in the Zone 3 of the Russian Second Division in 1993 ., FC Mordovia Saransk is a Russian association football club from Saransk, Republic of Mordovia. In its current state it was formed in 2005, through the merge of Biokhimik-Mordovia and Lisma-Mordovia., Saransk  is the capital city of the Republic of Mordovia, Russia, as well as its financial and economic center. It is located in the Volga basin at the confluence of the Saranka and Insar Rivers, about east of Moscow. Population: , The Republic of Mordovia (Moksha/Erzya:  , "Mordovija Respublika"), also known in English as Mordvinia, is a federal subject of Russia (a republic). Its capital is the city of Saransk. As of the 2010 Census, the population of the republic was 834,755. Ethnic Russians (53.4%) and Mordvins (40.0%) account for the majority of the population., Association football, more commonly known as football or soccer, is a team sport played between two teams of eleven players with a spherical ball. It is played by 250 million players in over 200 countries and dependencies, making it the world's most popular sport. The game is played on a rectangular field with a goal at each end. The object of the game is to score by getting the ball into the opposing goal., Moscow (or ) is the capital and most populous city of Russia, with 12.2 million residents within the city limits and 16.8 million within the urban area. Moscow has the status of a Russian federal city., Subject: fc biokhimik-mordovia saransk, Relation: instance_of, Options: (A) 12 (B) account (C) area (D) association (E) association football (F) association football club (G) capital (H) census (I) city (J) confluence (K) country (L) federation (M) football (N) game (O) geography (P) goal (Q) march (R) people (S) point (T) republic (U) republic of russia (V) river (W) saint (X) sport (Y) spring (Z) state ([) surface (\) team (]) team sport (^) water
Example Output: association football club

Example Input: Context: David Warren Ellefson (born November 12, 1964) is an American bassist and 2nd longest serving member of the American thrash metal band Megadeth from 1983 to 2002 and again from 2010. He has also been referred to as "Junior" to differentiate him from his bandmate Dave Mustaine, but does not go by this name professionally. Ellefson currently resides in Scottsdale, Arizona. In addition to playing bass guitar in Megadeth, Ellefson also has various side projects which include Temple of Brutality, F5, and Killing Machine., W.A.S.P. is an American heavy metal band formed in 1982 by Blackie Lawless, who is the only remaining original member of the band. They emerged from the same Los Angeles scene that spawned Van Halen, Mötley Crüe, Dokken, Ratt, Quiet Riot, Guns N' Roses, Great White, L.A. Guns, Leatherwolf and others. The band's popularity peaked in the 1980s, yet they continue to record and tour, making them one of the most enduring of the West Coast heavy metal bands. W.A.S.P. gained notoriety for their shock rock themed image, lyrics and live performances. They have sold over 12 million copies of their albums., L.A. Guns are an American hard rock band from Los Angeles, California, formed in 1983. As of 2014, the lineup consists of Phil Lewis (lead vocals, rhythm guitar), Steve Riley (drums, percussion, backing vocals), Kenny Kweens (bass guitar, backing vocals), and Michael Grant (lead guitar, backing vocals). The first incarnation of the group was formed by Tracii Guns in 1983 and merged with fellow Los Angeles group Hollywood Rose to form Guns N' Roses in 1984. In 1985, the group was reformed by Guns and singer Paul Black adding Mick Cripps and Nickey Alexander. Black would soon be replaced by former Girl singer Phil Lewis while former Faster Pussycat bassist Kelly Nickels was added to the group. Later, Alexander would be replaced by former W.A.S.P. drummer Steve Riley with this being known as the "classic lineup" of L.A. Guns. They achieved moderate chart success in the late 1980s and early 1990s. However, the group went through numerous lineup changes (with Riley being the most consistent member) and failed to regain mainstream attention., David Scott "Dave" Mustaine (born September 13, 1961) is an American musician, singer, songwriter, actor and author. He is best known as the co-founder, guitarist, and lead singer of the American thrash metal band Megadeth, and the original lead guitarist of the American thrash metal band Metallica., Mötley Crüe was an American glam metal band formed in Los Angeles, California on January 17, 1981. The group was founded by bass guitarist Nikki Sixx and drummer Tommy Lee, lead singer Vince Neil and lead guitarist Mick Mars. Mötley Crüe has sold more than 100 million records worldwide including 25 million in the US, making them one of the world's best-selling bands of all time., California is the most populous state in the United States and the third most extensive by area. Located on the western (Pacific Ocean) coast of the U.S., California is bordered by the other U.S. states of Oregon, Nevada, and Arizona and shares an international border with the Mexican state of Baja California. The state capital is Sacramento. Los Angeles is California's most populous city, and the country's second largest after New York City. The state also has the nation's most populous county, Los Angeles County, and its largest county by area, San Bernardino County., Los Angeles (Spanish for "The Angels"), officially the City of Los Angeles and often known by its initials L.A., is the second-most populous city in the United States (after New York City), the most populous city in California and the county seat of Los Angeles County. Situated in Southern California, Los Angeles is known for its mediterranean climate, ethnic diversity, sprawling metropolis, and as a major center of the American entertainment industry. Los Angeles lies in a large coastal basin surrounded on three sides by mountains reaching up to and over ., Great White is an American hard rock band, formed in Los Angeles in 1977. The band gained popularity during the 1980s and early 1990s. The band released several albums in the late 1980s and gained airplay on MTV with music videos for songs like "Once Bitten, Twice Shy". The band reached their peak popularity with the album "...Twice Shy" in 1989., Judas Priest are a British heavy metal band formed in Birmingham, England, in 1969. The band has sold close to 50 million albums to date. MTV ranked them the second greatest metal band of all time. Despite an innovative and pioneering body of work in the latter half of the 1970s, the band struggled with indifferently produced records, repeated changes of drummer and a lack of major commercial success or attention until 1980, when they adopted a more simplified sound on the album "British Steel", which helped shoot them to rock superstar status. In 1989, they were named as defendants in an unsuccessful lawsuit alleging that subliminal messages on the song "Better By You, Better Than Me" had caused the suicide attempts of two young men., Van Halen is an American hard rock band formed in Pasadena, California, in 1972. From 1974 until 1985, the band consisted of guitarist Eddie Van Halen, vocalist David Lee Roth, drummer Alex Van Halen, and bassist Michael Anthony., Blackie Lawless (born Steven Edward Duren; September 4, 1956) is an American songwriter and musician best known as the lead singer and rhythm guitarist (formerly bassist) for the heavy metal band W.A.S.P., Guns N' Roses is an American hard rock band from Los Angeles formed in 1985. The lineup, when first signed to Geffen Records in 1986, consisted of vocalist Axl Rose, lead guitarist Slash, rhythm guitarist Izzy Stradlin, bassist Duff McKagan, and drummer Steven Adler. The current lineup consists of Rose, Slash, McKagan, keyboardists Dizzy Reed and Melissa Reese, guitarist Richard Fortus and drummer Frank Ferrer. The band has released six studio albums, accumulating sales of more than 100 million records worldwide, including shipments of 45 million in the United States, making Guns N' Roses one of the world's best-selling bands of all time., Warlock were a German heavy metal band , assembled in 1982 with members of the underground bands Snakebite and Beast . The band gained popularity and some commercial success in Europe in the mid- 1980s , due also to the personality and stage presence of lead vocalist Doro Pesch . Warlock supported on tour successful metal bands , such as W.A.S.P. , Judas Priest , Dio and Megadeth . By the end of the decade , Doro Pesch was the sole original member who remained in the band and she was forced to change the name to Doro for legal reasons . Doro , the band , continues to play several songs taken from the Warlock repertoire in their live shows . The band has reunited for festival appearances and special occasions since 2003 , under the name Warlock 1986 ., Shock rock is an umbrella term for artists who combine rock music or metal with highly theatrical live performances emphasizing shock value. Performances may include violent or provocative behavior from the artists, the use of attention-grabbing imagery such as costumes, masks, or face paint, or special effects such as pyrotechnics or fake blood. Shock rock also often includes elements of horror., Megadeth is an American heavy thrash metal band from Los Angeles, California. Guitarist Dave Mustaine and bassist David Ellefson formed the band in 1983 shortly after Mustaine's dismissal from Metallica. A pioneer of the American thrash metal scene, the band is credited as one of the genre's "big four" with Anthrax, Metallica and Slayer, responsible for thrash metal's development and popularization. Megadeth plays in a technical style, featuring fast rhythm sections and complex arrangements. Themes of death, war, politics and religion are prominent in the group's lyrics., Quiet Riot is an American heavy metal band, best known for their hit singles "Metal Health" and "Cum on Feel the Noize." The band was founded in 1973, by guitarist Randy Rhoads and bassist Kelly Garni under the name Mach 1. They then changed the name to Little Women, before settling on Quiet Riot in May 1975. The band's name was inspired by a conversation with Rick Parfitt of the British band Status Quo, in which Parfitt said he'd like to name a band "Quite Right," and his thick English accent made it sound like he was saying "Quiet Riot." The band is ranked at No. 100 on VH1's 100 Greatest Artists of Hard Rock., MTV (originally an initialism of Music Television) is an American cable and satellite television channel owned by Viacom Media Networks (a division of Viacom) and headquartered in New York City. Launched on August 1, 1981, the channel originally aired music videos as guided by television personalities known as "video jockeys" (VJs). In its early years, MTV's main target demographic was young adults, but today it is primarily towards teenagers, high school students and college students. MTV has toned down its music video programming significantly in recent years, and its programming now consists mainly of original reality, comedy and drama programming and some off-network syndicated programs and films, with limited music video programming in off-peak time periods. It has received criticism towards this change of focus, both by certain segments of its audience and musicians. MTV's influence on its audience, including issues involving censorship and social activism, has also been a subject of debate for several years., Metallica is an American heavy metal band formed in Los Angeles, California. The band was formed in 1981 when vocalist/guitarist James Hetfield responded to an advertisement posted by drummer Lars Ulrich in a local newspaper. Metallica's current line-up comprises founding members Hetfield and Ulrich, longtime lead guitarist Kirk Hammett and bassist Robert Trujillo. Guitarist Dave Mustaine and bassists Ron McGovney, Cliff Burton and Jason Newsted are former members of the band., Ratt (stylized as RATT) is an American heavy metal band that had significant commercial success in the 1980s, with their albums having been certified as gold, platinum, and multi-platinum by the RIAA. The group is perhaps best known for hit singles such as "Round and Round" and "Lay It Down", tracks that ranked on Billboard's top 40 at No. 12 and No. 40, respectively, as well as other songs such as "Wanted Man", "You're in Love" and "Dance". Along with groups such as friendly rivals Mötley Crüe, Ratt has been recognized as instrumental in the formation of the early 1980s Los Angeles glam metal scene, also known as "hair metal" or "pop metal"., Thrash metal is an extreme subgenre of heavy metal music characterized by its fast tempo and overall aggression. The songs usually use fast percussive beats and low-register guitar riffs, overlaid with shredding-style lead work. The lyrics often deal with social issues and reproach for The Establishment, using direct and denunciatory language, an approach borrowed from hardcore punk., Leatherwolf is an American heavy metal band that formed in Huntington Beach, California in 1981. They split up in 1991, but reunited in 1999. The group is also nicknamed the "Triple Axe Attack" for pioneering the use of a 3-guitar line-up in heavy metal. Currently comprising vocalist and guitarist Michael Olivieri, guitarists Rob Math and Joey Tafolla, bassist Patrick Guyton, and drummer Dean Roberts, the band has released five studio albums. Leatherwolf has gone through many line-up changes, leaving Roberts as the only constant member. Though the band continues to perform live, they have not released any studio material since their 2007 album "New World Asylum"., Birmingham is a major city and metropolitan borough of West Midlands, England. It is the largest and most populous British city outside London, with a population in 2014 of 1,101,360. The city is in the West Midlands Built-up Area, the third most populous urban area in the United Kingdom, with a population of 2,440,986 at the 2011 census. Birmingham's metropolitan area is the second most populous in the UK with a population of 3.8 million. This also makes Birmingham the 9th most populous metropolitan area in Europe., "Better by You, Better than Me" is a 1969 song by the English rock band Spooky Tooth. The song was covered in 1978 by heavy metal band Judas Priest., Slayer is an American thrash metal band from Huntington Park, California, formed in 1981 by guitarist Kerry King and drummer Dave Lombardo. Slayer rose to fame with its 1986 release "Reign in Blood", and is credited as one of the "big four" thrash metal bands, along with Metallica, Megadeth, and Anthrax. Since its debut album in 1983, the band has released twelve studio albums, two live albums, a box set, six music videos, two extended plays and a cover album. Four of the band's studio albums have received gold certification in the United States. The band has received five Grammy nominations, winning one in 2007 for the song "Eyes of the Insane", and one in 2008 for the song "Final Six" (both from 2006's "Christ Illusion"). Slayer has also played at several music festivals worldwide, including Unholy Alliance, Download and Ozzfest., Subject: warlock , Relation: genre, Options: (A) album (B) country (C) entertainment (D) genre (E) glam metal (F) health (G) heavy metal (H) heavy metal music (I) horror (J) image (K) james (L) love (M) music (N) music video (O) percussion (P) politics (Q) pop (R) rhythm (S) rock (T) rock music (U) song (V) television (W) thrash metal (X) urban (Y) various (Z) war ([) western
Example Output: heavy metal music

Example Input: Context: Plovdiv is the second-largest city in Bulgaria with a population of 341,567 inhabitants , while 544,628 live in its urban area. It is an important economic, transport, cultural, and educational center. Plovdiv has evidence of habitation since the 6th millennium BC when the first Neolithic settlements were established. It is said to be one of the oldest cities in the world., Greece (' ), officially the Hellenic Republic (Greek: ' ), historically also known as Hellas ("" ), is a country in southeastern Europe. 
Greece's population is approximately 10.955 million as of 2015. Athens is the nation's capital and largest city, followed by Thessaloniki., Bulgaria (tr. '), officially the Republic of Bulgaria (tr. '), is a country in southeastern Europe. It is bordered by Romania to the north, Serbia and Macedonia to the west, Greece and Turkey to the south, and the Black Sea to the east. With a territory of , Bulgaria is Europe's 16th-largest country., Burgas Province (- "Oblast Burgas", former name Burgas okrug) is a province in southeastern Bulgaria, including southern Bulgarian Black Sea Coast. It is bounded on the south by Turkey. The province is named after its administrative and industrial centre - the city of Burgas - the fourth biggest town in the country. It is the largest province by area, embracing a territory of 7,748.1 km² that is divided into 13 municipalities with a total population, as of December 2009, of 422,319 inhabitants., Romania is a sovereign state located in Southeastern Europe. It borders the Black Sea, Bulgaria, Ukraine, Hungary, Serbia, and Moldova. It has an area of and a temperate-continental climate. With 19.94 million inhabitants, the country is the seventh-most-populous member state of the European Union. The capital and largest city, Bucharest, with its 1,883,425 inhabitants is the sixth-largest city in the EU., Burgas, sometimes transliterated as "Bourgas", is the second largest city on the Bulgarian Black Sea Coast and the fourth-largest in Bulgaria after Sofia, Plovdiv, and Varna, with a population of 211,033 inhabitants, while 277,922 live in its urban area. It is the capital of Burgas Province and an important industrial, transport, cultural and tourist centre., Turkey, officially the Republic of Turkey (Turkish: ), is a transcontinental country in Eurasia, mainly in Anatolia in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe. Turkey is a democratic, secular, unitary, parliamentary republic with a diverse cultural heritage. Turkey is bordered by eight countries: Greece to the west; Bulgaria to the northwest; Georgia to the northeast; Armenia, the Azerbaijani exclave of Nakhchivan and Iran to the east; and Iraq and Syria to the south. The Aegean Sea is to the west, the Black Sea to the north, and the Mediterranean Sea to the south. The Bosphorus, the Sea of Marmara, and the Dardanelles, which together form the Turkish Straits, divide Thrace and Anatolia; they also separate Europe and Asia. Turkey's location has given it geopolitical and strategic importance throughout history., The Bulgarian Black Sea Coast ("Chrnomori") covers the entire eastern bound of Bulgaria stretching from the Romanian Black Sea resorts in the north to European Turkey in the south, along 378 km of coastline. White and golden sandy beaches occupy approximately 130 km of the 378 km long coast. The region is an important center of tourism during the summer season (MayOctober), drawing millions of foreign and local tourists alike and constituting one of the country's most popular tourist destinations. Prior to 1989 the Bulgarian Black Sea coast was internationally known as the "Red Riviera". Since the fall of the Iron Curtain, however, its nickname has been changed to the "Bulgarian Riviera"., Serbia, officially the Republic of Serbia, is a sovereign state situated at the crossroads of Central and Southeast Europe, covering the southern part of the Pannonian Plain and the central Balkans. Relative to its small territory, it is a diverse country distinguished by a "transitional" character, situated along cultural, geographic, climatic and other boundaries. Serbia is landlocked and borders Hungary to the north; Romania and Bulgaria to the east; Macedonia to the south; and Croatia, Bosnia-Herzegovina, and Montenegro to the southwest; it also claims a border with Albania through the disputed territory of Kosovo. Serbia numbers around 7 million residents, and its capital, Belgrade, ranks among the largest cities in Southeast Europe., Varna (pronounced ) is the largest city and seaside resort on the Bulgarian Black Sea Coast, with a population of 334,466 inhabitants as of 2015, while 417,867 live in its functional urban area., Sarafovo is a neighbourhood of Burgas, largest city in South Eastern Bulgaria - a regional, tourist and trade center. , The Black Sea is a body of water between Eastern Europe and Western Asia, bounded by Bulgaria, Georgia, Romania, Russia, Turkey, and Ukraine. It is supplied by a number of major rivers, such as the Danube, Dnieper, Rioni, Southern Bug, and Dniester. The Black Sea has an area of (not including the Sea of Azov), a maximum depth of , and a volume of . It is constrained by the Pontic Mountains to the south and by the Caucasus Mountains to the east, and features a wide shelf to the northwest. The longest east-west extent is about ., Burgas Airport ( IATA : BOJ , ICAO : LBBG ) , ( Bulgarian :   , Letishte Burgas ) is an airport in southeast Bulgaria and the second largest airport in the country . The airport is located near to the north neighbourhood of Burgas , Sarafovo almost 10 kilometres from the city centre . Between the airport and the city centre is located the Lake Atanasovsko . The airport serves Burgas and seaside resorts of Bulgarian south coast . In 2014 , the airport handled 2,522,319 passengers , a 2.0 % increase compared to 2013 ., Sofia (or or ;) ("Sofiya",) is the capital and largest city of Bulgaria. The city has a population of 1.26 million, while 1.68 million people live in its metropolitan area. The city is located at the foot of Vitosha Mountain in the western part of the country, within less than drive from the Serbian border. Its location in the centre of the Balkan peninsula means that it is the midway between the Black Sea and the Adriatic Sea, whereas the Aegean Sea is the closest to it., Subject: burgas airport, Relation: located_in_the_administrative_territorial_entity, Options: (A) albania (B) anatolia (C) balkans (D) bulgaria (E) burgas (F) burgas province (G) center (H) centre (I) eu (J) europe (K) european union (L) golden (M) greece (N) kosovo (O) montenegro (P) most (Q) mountain (R) north (S) northwest (T) of (U) plain (V) plovdiv (W) romania (X) seaside (Y) serbia (Z) sofia ([) south (\) syria (]) thessaloniki (^) turkey (_) union (`) varna
Example Output:
burgas province