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).

Ex Input:
Context: The Brecon Beacons is a mountain range in South Wales. In a narrow sense, the name refers to the range of Old Red Sandstone peaks which lie to the south of Brecon. Sometimes referred to as "the central Beacons" they include South Wales' highest mountain, Pen y Fan. The range forms the central section of the Brecon Beacons National Park ("Parc Cenedlaethol Bannau Brycheiniog"), a designation which also encompasses ranges both to the east and the west of "the central Beacons". This much wider area is also commonly referred to as "the Brecon Beacons", and it includes the Black Mountains to the east as well as the similarly named but quite distinct Black Mountain to the west. The highest peaks include Fan Brycheiniog to the west and Pen y Fan in the central part. They share the same basic geology as the central range, and so exhibit many similar features, such the north-facing escarpment and glacial features such as lakes and cwms below the escarpment. They all fall within the border of the national park., The Irish Sea (, , , Ulster-Scots: "Airish Sea"), separates the islands of Ireland and Great Britain. It is connected to the Celtic Sea in the south by St George's Channel, and to the Inner Seas off the West Coast of Scotland in the north by the North Channel. Anglesey is the largest island within the Irish Sea, followed by the Isle of Man. The sea is occasionally, but rarely, referred to as the Manx Sea., A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as stream, creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague., A glacier (or ) is a persistent body of dense ice that is constantly moving under its own weight; it forms where the accumulation of snow exceeds its ablation (melting and sublimation) over many years, often centuries. Glaciers slowly deform and flow due to stresses induced by their weight, creating crevasses, seracs, and other distinguishing features. They also abrade rock and debris from their substrate to create landforms such as cirques and moraines. Glaciers form only on land and are distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water., Fforest Fawr is the name given to an extensive upland area in the county of Powys, Wales. Formerly known as the Great Forest of Brecknock in English, it was a royal hunting area for several centuries but is now used primarily for sheep grazing, forestry, water catchment and recreation. It lies within the Brecon Beacons National Park., Brecon, archaically known as Brecknock, is a market town and community in Powys, Mid Wales, with a population in 2001 of 7,901, increasing to 8,250 at the 2011 census. Historically it was the county town of Brecknockshire; although its role as such was eclipsed with the formation of the County of Powys, it remains an important local centre. Brecon is the third-largest town in Powys, after Newtown and Ystradgynlais. It lies north of the Brecon Beacons mountain range, but is just within the Brecon Beacons National Park., 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 Bristol Channel is a major inlet in the island of Great Britain, separating South Wales from Devon and Somerset in South West England. It extends from the lower estuary of the River Severn to the North Atlantic Ocean. It takes its name from the English city of Bristol, and is over 30 miles (50 km) across at its widest point., The Brecon Beacons National Park is one of three national parks in Wales, and is centred on the Brecon Beacons range of hills in southern Wales. It includes the Black Mountain in the west, ("Great Forest") and the Brecon Beacons in the centre and the Black Mountains in the east., A country is a region that is identified as a distinct national entity in political geography. A country may be an independent sovereign state or one that is occupied by another state, as a non-sovereign or formerly sovereign political division, or a geographic region associated with sets of previously independent or differently associated people with distinct political characteristics. Regardless of the physical geography, in the modern internationally accepted legal definition as defined by the League of Nations in 1937 and reaffirmed by the United Nations in 1945, a resident of a country is subject to the independent exercise of legal jurisdiction., Great Britain, also known as Britain , is a large island in the north Atlantic Ocean off the northwest coast of continental Europe. With an area of , Great Britain is the largest European island and the ninth-largest in the world. In 2011 the island had a population of about 61 million people, making it the world's third-most populous island after Java in Indonesia and Honshu in Japan. The island of Ireland is situated to the west of it, and together these islands, along with over 1,000 smaller surrounding islands, comprise the British Isles archipelago., A mountain is a large landform that stretches above the surrounding land in a limited area, usually in the form of a peak. A mountain is generally steeper than a hill. Mountains are formed through tectonic forces or volcanism. These forces can locally raise the surface of the earth. Mountains erode slowly through the action of rivers, weather conditions, and glaciers. A few mountains are isolated summits, but most occur in huge mountain ranges., A landform is a natural feature of the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Typical landforms include hills, mountains, plateaus, canyons, valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins., A national park is a park in use for conservation purposes. Often it is a reserve of natural, semi-natural, or developed land that a sovereign state declares or owns. Although individual nations designate their own national parks differently, there is a common idea: the conservation of 'wild nature' for posterity and as a symbol of national pride. An international organization, the International Union for Conservation of Nature (IUCN), and its World Commission on Protected Areas, has defined "National Park" as its "Category II" type of protected areas., 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., A mountain range (also mountain barrier, belt, or system) is a geographic area containing numerous geologically related mountains. A mountain system or system of mountain ranges, sometimes is used to combine several geological features that are geographically (regionally) related. On Earth, most significant mountain ranges are the result of plate tectonics, though mountain ranges are formed by a range of processes, are found on many planetary mass objects in the Solar System and are likely a feature of most terrestrial planets., Volcanism is the phenomenon of eruption of molten rock (magma) onto the surface of the Earth or a solid-surface planet or moon, where lava, pyroclastics and volcanic gases erupt through a break in the surface called a vent. It includes all phenomena resulting from and causing magma within the crust or mantle of the body, to rise through the crust and form volcanic rocks on the surface., Powys (or ; Welsh: ) is a principal area, local-government county and preserved county in Mid Wales. It is named after the successor Kingdom of Powys, which formed after the Romans withdrew from Britain., Fan Fawr ( Welsh ' big peak ' ) is a mountain in the Fforest Fawr section of the Brecon Beacons National Park , South Wales and over 734 m ( 2,408 ft ) high . The summit overlooks the steep eastern face and is marked by a cairn . Unusually , the trig point on this hill does not sit at the summit but 600 m to the south - west on a subsidiary spur . The hill is drained to the west by streams flowing into the Afon Dringarth and to the east by streams draining into the Taf Fawr . The Dringarth is dammed to the west to form Ystradfellte Reservoir as is the Taf Fawr east of the hill to form Beacons Reservoir . To the north - east water flows into the Afon Tarell , a tributary of the River Usk whilst to the south the headwaters of the Afon y Waun conduct water to the Afon Hepste and eventually to the River Neath ., Yr Wyddfa commonly known as Snowdon in English, is the highest mountain in Wales, at an elevation of above sea level, and the highest point in the British Isles south of the Scottish Highlands. It is located in Snowdonia National Park (") in Gwynedd, and has been described as "probably the busiest mountain in Britain". It is designated as a national nature reserve for its rare flora and fauna., The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a sovereign country in western Europe. Lying off the north-western coast of the European mainland, it includes the island of Great Britain (the name of which is also loosely applied to the whole country), the north-eastern part of the island of Ireland, and many smaller islands. Northern Ireland is the only part of the UK that shares a land border with another sovereign statethe Republic of Ireland. Apart from this land border, the UK is surrounded by the Atlantic Ocean, with the North Sea to its east, the English Channel to its south and the Celtic Sea to its south-south-west, giving it the 12th-longest coastline in the world. The Irish Sea lies between Great Britain and Ireland. With an area of , the UK is the 78th-largest sovereign state in the world and the 11th-largest in Europe. It is also the 21st-most populous country, with an estimated 65.1 million inhabitants. Together, this makes it the fourth most densely populated country in the European Union., Subject: fan fawr, Relation: located_in_the_administrative_territorial_entity, Options: (A) anglesey (B) atlantic ocean (C) black mountain (D) brecknockshire (E) brecon (F) bristol (G) earth (H) east (I) england (J) europe (K) forest (L) freshwater (M) hill (N) ireland (O) isle of man (P) java (Q) kingdom of great britain (R) lakes (S) mainland (T) mountain (U) national park (V) north (W) northern (X) northwest (Y) of (Z) powys ([) rise (\) river (]) rock (^) scotland (_) scottish highlands (`) snowdonia (a) somerset (b) south (c) ulster (d) united kingdom (e) upland (f) wales

Ex Output:
powys


Ex Input:
Context: The Poltva River ( Ukrainian :  ; Polish : Petew ) is a river in the western Ukrainian Oblast of Lviv and a tributary of the Bug River . The capital of the Lviv Oblast , Lviv , is located on the river . In the 19th century the river was included into the underground sewer system of Lviv ., The Second Polish Republic, also known as the Second Commonwealth of Poland or interwar Poland, refers to the country of Poland between the First and Second World Wars (19181939). Officially known as the Republic of Poland or the Commonwealth of Poland, the Polish state was recreated in 1918, in the aftermath of World War I. When, after several regional conflicts, the borders of the state were fixed in 1922, Poland's neighbours were Czechoslovakia, Germany, the Free City of Danzig, Lithuania, Latvia, Romania and the Soviet Union. It had access to the Baltic Sea via a short strip of coastline either side of the city of Gdynia. Between March and August 1939, Poland also shared a border with the then-Hungarian governorate of Subcarpathia. Despite internal and external pressures, it continued to exist until 1939, when Poland was invaded by Nazi Germany, the Soviet Union and the Slovak Republic, marking the beginning of World War II in Europe. The Second Republic was significantly different in territory to the current Polish state. It included substantially more territory in the east and less in the west., The Bug River (or Western Bug "Zakhidnyy Buh, ") is a major European river which flows through three countries with a total length of ., Lviv (',   ', ; Yiddish: ; Latin: "Leopolis"), the largest city in western Ukraine and the seventh largest city in the country overall, is one of the main cultural centres of Ukraine. Named in honor of the Leo, the eldest son of Rus' King Daniel of Galicia. It was the capital of the Kingdom of GaliciaVolhynia (also called Kingdom of Rus') from 1272 to 1349, when it was conquered by King Casimir III the Great who then became known as the King of Poland and Rus'. From 1434, it was the regional capital of the Ruthenian Voivodeship in the Kingdom of Poland and was known as Lwów. In 1772, after the First partition of Poland, the city became the capital of the Habsburg Kingdom of Galicia and Lodomeria and was renamed to Lemberg. In 1918 in a short time was the capital of the West Ukrainian People's Republic. Between the wars, the city was known again as Lwów and was the centre of the Lwów Voivodeship in the Second Polish Republic. After World War II, it became part of the Soviet Union (Ukrainian SSR) and in 1991 of independent Ukraine. 
Administratively, Lviv serves as the administrative center of Lviv Oblast and has the status of city of oblast significance. Its population is ., Ukraine (tr. ) is a sovereign state in Eastern Europe, bordered by Russia to the east and northeast, Belarus to the northwest, Poland and Slovakia to the west, Hungary, Romania, and Moldova to the southwest, and the Black Sea and Sea of Azov to the south and southeast, respectively. Ukraine is currently in territorial dispute with Russia over the Crimean Peninsula which Russia annexed in 2014 but which Ukraine and most of the international community recognise as Ukrainian. Including Crimea, Ukraine has an area of , making it the largest country entirely within Europe and the 46th largest country in the world. It has a population of about 44.5 million, making it the 32nd most populous country in the world., Subject: poltva river, Relation: mouth_of_the_watercourse, Options: (A) main (B) sea (C) sea of azov (D) western bug

Ex Output:
western bug


Ex Input:
Context: The cuckoos are a family of birds, Cuculidae, the sole taxon in the order Cuculiformes. The cuckoo family includes the common or European cuckoo, roadrunners, koels, malkohas, couas, coucals and anis. The coucals and anis are sometimes separated as distinct families, the Centropodidae and Crotophagidae respectively., The true koels, Eudynamys, are a genus of cuckoos from Asia, Australia and the Pacific. They are large sexually dimorphic cuckoos which eat fruits and insects and have loud distinctive calls. They are brood parasites, laying their eggs in the nests of other species., A coucal is one of about 30 species of birds in the cuckoo family. All of them belong in the subfamily Centropodinae and the genus Centropus. Unlike many Old World cuckoos, coucals are not brood parasites. On the other hand, they do have their own reproductive peculiarity: all members of the genus are to varying degrees sex-role reversed so that the smaller male provides most of the parental care. At least one coucal species, the black coucal, is polyandrous. Some species ("Centropus phasianinus") have the male investing more in incubation and parental care. Recent DNA evidence suggests that they should be raised to family status, as Centropodidae., Central America is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast. Central America is bordered by Mexico to the north, Colombia to the southeast, the Caribbean Sea to the east, and the Pacific Ocean to the west. Central America consists of seven countries: Belize, Guatemala, El Salvador, Honduras, Nicaragua, Costa Rica and Panama. The combined population of Central America is between 41,739,000 (2009 estimate) and 42,688,190 (2012 estimate)., Birds (Aves), also known as avian dinosaurs, are a group of endothermic vertebrates, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a lightweight but strong skeleton. Birds live worldwide and range in size from the bee hummingbird to the ostrich. They rank as the class of tetrapods with the most living species, at approximately ten thousand, with more than half of these being passerines, sometimes known as perching birds or, less accurately, as songbirds., In biology, an organism is any contiguous living system, such as an animal, plant, fungus, archaeon, or bacterium. All known types of organisms are capable of some degree of response to stimuli, reproduction, growth and development and homeostasis. An organism consists of one or more cells; when it has one cell it is known as a unicellular organism; and when it has more than one it is known as a multicellular organism. Most unicellular organisms are of microscopic scale and are thus loosely described as microorganisms. Humans are multicellular organisms composed of many trillions of cells grouped into specialized tissues and organs., Bean is a common name for large seeds of several genera of the flowering plant family Fabaceae (also known as Leguminosae) which are used for human or animal food., Piaya is a small genus of relatively large and long - tailed cuckoos , which occur in Mexico , Central America and South America . The two species in taxonomic order are : Squirrel cuckoo , Piaya cayana Black - bellied cuckoo , Piaya melanogaster The little cuckoo has been found to be closer to some species traditionally placed in Coccyzus or Micrococcyx . These are now again separated in Coccycua ., Brazil, officially the Federative Republic of Brazil, is the largest country in both South America and Latin America. As the world's fifth-largest country by both area and population, it is the largest country to have Portuguese as an official language and the only one in the Americas. Bounded by the Atlantic Ocean on the east, Brazil has a coastline of . It borders all other South American countries except Ecuador and Chile and covers 47.3% of the continent's land area. Its Amazon River basin includes a vast tropical forest, home to diverse wildlife, a variety of ecological systems, and extensive natural resources spanning numerous protected habitats. This unique environmental heritage makes Brazil one of 17 megadiverse countries, and is the subject of significant global interest and debate regarding deforestation and environmental protection., The Gulf of Mexico is an ocean basin largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. The U.S. states of Alabama, Florida, Louisiana, Mississippi and Texas border the Gulf on the north, which are often referred to as the "Third Coast" in comparison with the U.S. Atlantic and Pacific coasts, or sometimes the "south coast", in juxtaposition to the Great Lakes region being the "north coast." One of the gulf's seven main areas is the Gulf of Mexico basin., Guadalajara is the capital and largest city of the Mexican state of Jalisco, and the seat of the municipality of Guadalajara. The city is in the central region of Jalisco in the Western-Pacific area of Mexico. With a population of 1,495,189 it is Mexico's fourth most populous municipality. The Guadalajara Metropolitan Area includes seven adjacent municipalities with a reported population of 4,328,584 in 2009, making it the second most populous metropolitan area in Mexico, behind Mexico City. The municipality is the second most densely populated in Mexico, the first being Ciudad Nezahualcóyotl in the State of Mexico. It is a strong business and economic center in the Bajio region. , Binomial nomenclature (also called binominal nomenclature or binary nomenclature) is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (which may be shortened to just "binomial"), a binomen or a scientific name; more informally it is also called a Latin name. The first part of the name identifies the genus to which the species belongs; the second part identifies the species within the genus. For example, humans belong to the genus "Homo" and within this genus to the species "Homo sapiens". The "formal" introduction of this system of naming species is credited to Carl Linnaeus, effectively beginning with his work "Species Plantarum" in 1753. But Gaspard Bauhin, in as early as 1623, had introduced in his book "Pinax theatri botanici" (English, "Illustrated exposition of plants") many names of genera that were later adopted by Linnaeus., South America is a continent located in the western hemisphere, mostly in the southern hemisphere, with a relatively small portion in the northern hemisphere. It is also considered a subcontinent of the Americas, which is the model used in nations that speak Romance languages. The reference to South America instead of other regions (like Latin America or the Southern Cone) has increased in the last decades due to changing geopolitical dynamics (in particular, the rise of Brazil)., Malkohas are large birds in the cuckoo family Cuculidae, all in the genus Phaenicophaeus. The group name is derived from the Sinhala word for the red-faced malkoha; Mal-Koha meaning flower-cuckoo. These are all Asian tropical species. The genus name is derived from the Ancient Greek "phoiniko-" "crimson", and "phaes" "eyes" or "face", referring to the red-faced malkoha. However, the 'œ' was mistranscribed as 'æ'., Panama, officially called the Republic of Panama, is a country usually considered to be entirely in North America or Central America. It is bordered by Costa Rica to the west, Colombia (in South America) to the southeast, the Caribbean Sea to the north and the Pacific Ocean to the south. The capital and largest city is Panama City, whose metropolitan area is home to nearly half of the country's 3.9 million people., Toluca , officially called Toluca de Lerdo , is the state capital of State of Mexico as well as the seat of the Municipality of Toluca. It is the center of a rapidly growing urban area, now the fifth largest in Mexico. It is located west-southwest of Mexico City, about 40 minutes by car to the western edge of the city. According to the 2010 census, the city of Toluca has a population of 819,561. The city is the fifth largest in Mexico in population. The municipality of Toluca, along with thirteen other municipalities, make up the metropolitan population of 1,775,337 in Greater Toluca , making it the fifth most populous metropolitan area in Mexico., Southern Cone is a geographic region composed of the southernmost areas of South America, south of and around the Tropic of Capricorn. Traditionally, it covers Argentina, Chile and Uruguay, bounded on the west by the Pacific Ocean, and south to the junction between the Pacific and Atlantic Oceans, which is the closest continental area of Antarctica (1000 km). In terms of social and political geography, the Southern Cone comprises Argentina, Chile, Uruguay, Southern Brazil and sometimes Paraguay., Couas are large, mostly terrestrial birds of the cuckoo family, endemic to the island of Madagascar. "Coua" derives from "koa", the Malagasy name for a cuckoo or coua, which is in turn an onomatopoeic of some species' call notes., A continent is one of several very large landmasses on Earth. Generally identified by convention rather than any strict criteria, up to seven regions are commonly regarded as continents. Ordered from largest in size to smallest, they are: Asia, Africa, North America, South America, Antarctica, Europe, and Australia. In geology, areas of continental crust include regions covered with water., A genus ( genera) is a taxonomic rank used in the biological classification of living and fossil organisms in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus., Guatemala (, or ), officially the Republic of Guatemala, is a country in Central America bordered by Mexico to the north and west, the Pacific Ocean to the southwest, Belize to the northeast, the Caribbean to the east, Honduras to the east and El Salvador to the southeast. With an estimated population of around 15.8 million, it is the most populated state in Central America. A representative democracy, Guatemala's capital and largest city is Nueva Guatemala de la Asunción, also known as Guatemala City., Mexico (, modern Nahuatl ), officially the United Mexican States, is a federal republic in the southern half of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Covering almost two million square kilometers (over 760,000 sq mi), Mexico is the sixth largest country in the Americas by total area and the 13th largest independent nation in the world. With an estimated population of over 120 million, it is the eleventh most populous country and the most populous Spanish-speaking country in the world while being the second most populous country in Latin America. Mexico is a federation comprising 31 states and a federal district that is also its capital and most populous city. Other metropolises include Guadalajara, Monterrey, Puebla, Toluca, Tijuana and León., Costa Rica (literally meaning "Rich Coast"), officially the Republic of Costa Rica, is a country in Central America, bordered by Nicaragua to the north, Panama to the southeast, the Pacific Ocean to the west, the Caribbean Sea to the east, and Ecuador to the south of Cocos Island. It has a population of around 4.5 million, of whom nearly a quarter live in the metropolitan area of the capital and largest city, San José., Monterrey, is the capital and largest city of the northeastern state of Nuevo León, in Mexico. The city is anchor to the third-largest metropolitan area in Mexico and is ranked as the ninth-largest city in the nation. Monterrey serves as a commercial center in the north of the country and is the base of many significant international corporations., Subject: piaya, Relation: parent_taxon, Options: (A) alabama (B) animal (C) area (D) areas (E) argentina (F) cocos (G) coua (H) coucal (I) cuculidae (J) fabaceae (K) homo (L) human (M) insects (N) la (O) ostrich (P) plant

Ex Output:

cuculidae