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 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., The electron is a subatomic particle, symbol or , with a negative elementary electric charge. Electrons belong to the first generation of the lepton particle family, and are generally thought to be elementary particles because they have no known components or substructure. The electron has a mass that is approximately 1/1836 that of the proton. Quantum mechanical properties of the electron include an intrinsic angular momentum (spin) of a half-integer value, expressed in units of the reduced Planck constant, "". As it is a fermion, no two electrons can occupy the same quantum state, in accordance with the Pauli exclusion principle. Like all matter, electrons have properties of both particles and waves: they can collide with other particles and can be diffracted like light. The wave properties of electrons are easier to observe with experiments than those of other particles like neutrons and protons because electrons have a lower mass and hence a larger De Broglie wavelength for a given energy., Calcium is a chemical element with symbol Ca and atomic number 20. Calcium is a soft gray Group 2 alkaline earth metal, fifth-most-abundant element by mass in the Earth's crust. The ion Ca is also the fifth-most-abundant dissolved ion in seawater by both molarity and mass, after sodium, chloride, magnesium, and sulfate. Free calcium metal is too reactive to occur in nature. Calcium is produced in supernova nucleosynthesis., Northern Ireland (; Ulster Scots: "") is a top-level constituent unit of the United Kingdom in the northeast of Ireland. It is variously described as a country, province, region, or "part" of the United Kingdom, amongst other terms. Northern Ireland shares a border to the south and west with the Republic of Ireland. In 2011, its population was 1,810,863, constituting about 30% of the island's total population and about 3% of the UK's population. Established by the Northern Ireland Act 1998 as part of the Good Friday Agreement, the Northern Ireland Assembly holds responsibility for a range of devolved policy matters, while other areas are reserved for the British government. Northern Ireland co-operates with the Republic of Ireland in some areas, and the Agreement granted the Republic the ability to "put forward views and proposals" with "determined efforts to resolve disagreements between the two governments"., A chemical element or element is a species of atoms having the same number of protons in their atomic nuclei (i.e. the same atomic number, "Z"). There are 118 elements that have been identified, of which the first 94 occur naturally on Earth with the remaining 24 being synthetic elements. There are 80 elements that have at least one stable isotope and 38 that have exclusively radioactive isotopes, which decay over time into other elements. Iron is the most abundant element (by mass) making up Earth, while oxygen is the most common element in the Earth's crust., Sodium is a chemical element with symbol Na (from Latin "natrium") and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table, because it has a single electron in its outer shell that it readily donates, creating a positively charged atomthe Na cation. Its only stable isotope is Na. The free metal does not occur in nature, but must be prepared from compounds. Sodium is the sixth most abundant element in the Earth's crust, and exists in numerous minerals such as feldspars, sodalite and rock salt (NaCl). Many salts of sodium are highly water-soluble: sodium ions have been leached by the action of water from the Earth's minerals over eons, and thus sodium and chlorine are the most common dissolved elements by weight in the oceans., The alkaline earth metals are six chemical elements in column (group) 2 of the Periodic table. They are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra). They have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure., The Kingdom of Great Britain, officially Great Britain , was a sovereign state in western Europe from 1 May 1707 to 31 December 1800. The state came into being following the Treaty of Union in 1706, ratified by the Acts of Union 1707, which united the kingdoms of England and Scotland to form a single kingdom encompassing the whole island of Great Britain and its outlying islands. It did not include Ireland, which remained a separate realm. The unitary state was governed by a single parliament and government that was based in Westminster. The former kingdoms had been in personal union since James VI, King of Scots, became King of England and King of Ireland in 1603 following the death of Queen Elizabeth I, bringing about a "Union of the Crowns". Also after the accession of George I to the throne of Great Britain in 1714, the kingdom was in a personal union with the Electorate of Hanover., The chloride ion is the anion (negatively charged ion) Cl. It is formed when the element chlorine (a halogen) gains an electron or when a compound such as hydrogen chloride is dissolved in water or other polar solvents. Chloride salts such as sodium chloride are often very soluble in water. It is an essential electrolyte located in all body fluids responsible for maintaining acid/base balance, transmitting nerve impulses and regulating fluid in and out of cells. Less frequently, the word "chloride" may also form part of the "common" name of chemical compounds in which one or more chlorine atoms are covalently bonded. For example, methyl chloride, with the standard name chloromethane (see IUPAC books) is an organic compound with a covalent CCl bond in which the chlorine is not an anion., Magnesium is a chemical element with symbol Mg and atomic number 12. It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second column (Group 2, or alkaline earth metals) of the periodic table: all Group 2 elements have the same electron configuration in the outer electron shell and a similar crystal structure., Ireland, also described as the Republic of Ireland ('), is a sovereign state in north-western Europe occupying about five-sixths of the island of Ireland. The capital and largest city is Dublin, which is located on the eastern part of the island, and whose metropolitan area is home to around a third of the country's 4.75 million inhabitants. The state shares its only land border with Northern Ireland, a part of the United Kingdom. It is otherwise surrounded by the Atlantic Ocean, with the Celtic Sea to the south, Saint George's Channel to the south-east, and the Irish Sea to the east. It is a unitary, parliamentary republic. The legislature, the ', consists of a lower house, ', an upper house, ', and an elected President (') who serves as the largely ceremonial head of state, but with some important powers and duties. The head of government is the ' (Prime Minister, literally 'Chief', a title not used in English), who is elected by the Dáil and appointed by the President, and appoints other government ministers., Hijiki (  ,  or  hijiki ) ( Sargassum fusiforme , syn . Hizikia fusiformis ) is a brown sea vegetable growing wild on rocky coastlines around Japan , Korea , and China . Hijiki has been a part of the Japanese diet for centuries . Hijiki is rich in dietary fibre and essential minerals such as calcium , iron , and magnesium . According to Japanese folklore , hijiki aids health and beauty , and thick , black , lustrous hair is connected to regular consumption of small amounts of hijiki . Hijiki has been sold in United Kingdom natural products stores for 30 years and hijiki 's culinary uses have been adopted in North America . Recent studies have shown that hijiki contains potentially toxic quantities of inorganic arsenic , and the food safety agencies of several countries ( excluding Japan ) , including Canada , the United Kingdom , and the United States , have advised against its consumption ., Subject: hijiki, Relation: taxon_rank, Options: (A) family (B) form (C) group (D) kingdom (E) species

Ex Output:
species


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: Convivio ( The Banquet ) is a work written by Dante Alighieri roughly between 1304 and 1307 . This unfinished work of Dante consists of four trattati , or `` books '' : a prefatory one , plus three books that each include a canzone ( long lyrical poem ) and a prose allegorical interpretation or commentary of the poem that goes off in multiple thematic directions . The Convivio is a major stage of development for Dante , very different from the visionary world of the Vita nuova ( although like the earlier work it too is a medium for the author 's evolving sense of artistic vocation and philosophical - spiritual quest ) . This difference is reflected in how the two works use the prosimetrum format : in the Vita Nova there is a complex interrelation and intertwining between the prose and the poetry , while in the Convivio large blocks of prose have an autonomous existence apart from the poems ; the content of the poetry is not amplified or edited in the prose so much as commented upon prosaically , to serve as points of departure for the various subjects that the Convivio discusses . Dante himself tells us that the prose of the Convivio is `` temperate and virile , '' in contrast to the `` fervid and passionate '' prose of the Vita Nova ; and that while the approach to this in the work of his youth was `` like dreaming '' the Convivio approaches it subjects soberly and wide awake , often modeling its style on Scholastic authors . The Convivio is a kind of vernacular encyclopedia of the knowledge of Dante 's time ; it touches on many areas of learning , not only philosophy but also politics , linguistics , science , and history . The treatise begins with the prefatory book , or proem , which explains why a book like the Convivio is needed and why Dante is writing it in the vernacular instead of Latin . It is one of Dante 's early defenses of the vernacular , expressed in greater detail in his ( slightly earlier ) linguistic treatise De vulgari eloquentia ( On Eloquence in the Vernacular ) . Books 2 and 3 form a unit , both focusing on Dante 's new love after the death of Beatrice -- his love for Lady Philosophy , `` the most beautiful and dignified daughter of the Emperor of the universe , '' as he calls her . Book 2 discusses allegory and Lady Philosophy ( in connection with the canzone Voi che '' ntendendo il terzo ciel movete ( You who move the third heaven with an act of the intellect ) , which opens the book ) , and also brings such subjects as astronomy , angelology , and the soul 's immortality . Book 3 is a hymn of praise for philosophy , launched by an allegorical interpretation of Dante 's great canzone Amor che ne la mente mi ragiona ( Love , who speaks to me in my mind ) . In this book , Dante asserts that true philosophy can not arise from any ulterior motives , such as prestige or money -- it is only possible when the seeker has a love of wisdom for its own sake . Book 4 is by far the longest of the Convivio , and is noticeably distinct from the two books that precede it . The subject of book 4 is the nature of nobility . It opens with the longest canzone of the Convivio , Le dolci rime damor ( Those sweet poems of love ) , which is explicitly about gentilezza or nobility , as well as a condemnation of avarice , asserting that reason and the spirit of acquisition are mutually incompatible . The first half of book 4 's thirty chapters are dedicated to debunking the false idea of nobility as an inherited trait , one restricted to the aristocracy , while the final fifteen chapters delineate what true nobility consists of -- the perfection of a thing according to its nature -- and how nobility manifests in people at various stages of life . The Convivio , in its autobiographical passages and in the trajectories of its lines of thought , gives us a rich portrait of Dante himself , of great importance for an understanding of his work as a whole , especially the Divine Comedy ., World literature is sometimes used to refer to the sum total of the worlds national literatures, but usually it refers to the circulation of works into the wider world beyond their country of origin. Often used in the past primarily for masterpieces of Western European literature, world literature today is increasingly seen in global context. Readers today have access to an unprecedented range of works from around the world in excellent translations, and since the mid-1990s a lively debate has grown up concerning both the aesthetic and the political values and limitations of an emphasis on global processes over national traditions., Italian (or "lingua italiana" ) is a Romance language. It is the second-closest to Latin in terms of vocabulary after Sardinian. Italian is an official language in Italy, Switzerland, San Marino, Vatican City and western Istria (in Slovenia and Croatia). It used to have official status in Albania, Malta and Monaco, where it is still widely spoken, as well as in former Italian East Africa and Italian North Africa regions where it plays a significant role in various sectors. Italian is spoken by small minorities in places such as France (especially in Corsica), Montenegro, Bosnia & Herzegovina, Crimea and Tunisia and by large expatriate communities in the Americas. Many speakers are native bilinguals of both standardized Italian and other regional languages. Italian is the fourth most studied language in the world., The Divine Comedy is a poem by Dante Alighieri, begun and completed 1320, a year before his death in 1321. It is widely considered the preeminent work of Italian literature, and is seen as one of the greatest works of world literature. The poem's imaginative vision of the afterlife is representative of the medieval world-view as it had developed in the Western Church by the 14th century. It helped establish the Tuscan language, in which it is written, as the standardized Italian language. It is divided into three parts: "Inferno", "Purgatorio", and "Paradiso"., The Late Middle Ages or Late Medieval Period was the period of European history generally comprising the 14th and 15th centuries (c. 13011500). The Late Middle Ages followed the High Middle Ages and preceded the onset of the early modern era (and, in much of Europe, the Renaissance)., Durante degli Alighieri, simply called Dante (, ; c. 1265  1321), was a major Italian poet of the Late Middle Ages. His "Divine Comedy", originally called ' (modern Italian: "Commedia") and later christened ' by Boccaccio, is widely considered the greatest literary work composed in the Italian language and a masterpiece of world literature., Subject: convivio, Relation: instance_of, Options: (A) afterlife (B) church (C) city (D) comedy (E) country (F) death (G) emphasis (H) history (I) italy (J) language (K) literary work (L) literature (M) period (N) range (O) romance (P) status (Q) three (R) work (S) year

Ex Output:
literary work