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).

Context: Mean sea level (MSL) (abbreviated simply sea level) is an average level of the surface of one or more of Earth's oceans from which heights such as elevations may be measured. MSL is a type of vertical datuma standardised geodetic reference pointthat is used, for example, as a chart datum in cartography and marine navigation, or, in aviation, as the standard sea level at which atmospheric pressure is measured in order to calibrate altitude and, consequently, aircraft flight levels. A common and relatively straightforward mean sea-level standard is the midpoint between a mean low and mean high tide at a particular location., Bakewell is a small market town and civil parish in the Derbyshire Dales district of Derbyshire, England, well known for the local confection Bakewell pudding (often mistaken for the Bakewell tart). It is located on the River Wye, about thirteen miles (21 km) southwest of Sheffield. In the 2011 census the civil parish of Bakewell had a population of 3,949. The town is close to the tourist attractions of Chatsworth House and Haddon Hall., Buxton is a spa town in Derbyshire, England. It has the highest elevationabout above sea levelof any market town in England. Close to the county boundary with Cheshire to the west and Staffordshire to the south, Buxton is described as "the gateway to the Peak District National Park". A municipal borough until 1974, Buxton was then merged with other localities lying primarily to the north, including Glossop, to form the local government district and borough of High Peak within the county of Derbyshire. Economically, Buxton is within the sphere of influence of Greater Manchester. The population of the town was 22,115 at the 2011 Census., The Archbishop of Canterbury is the senior bishop and principal leader of the Church of England, the symbolic head of the worldwide Anglican Communion and the diocesan bishop of the Diocese of Canterbury. The current archbishop is Justin Welby. His enthronement took place at Canterbury Cathedral on 21 March 2013. Welby is the 105th in a line which goes back more than 1400 years to Augustine of Canterbury, the "Apostle to the English", sent from Rome in the year 597. Welby succeeded Rowan Williams., The Peak District is an upland area in England at the southern end of the Pennines. It is mostly in northern Derbyshire, but also includes parts of Cheshire, Greater Manchester, Staffordshire and Yorkshire. An area of great diversity, it is split into the northern Dark Peak, where most of the moorland is found and the geology is gritstone, and the southern White Peak, where most of the population lives and the geology is mainly limestone., Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams and molluscs. Its major materials are the minerals calcite and aragonite, which are different crystal forms of calcium carbonate (CaCO)., The Anglican Communion is an international association of autonomous churches consisting of the Church of England and national and regional Anglican churches ("provinces") in full communion with it. Full participation in the sacramental life of each church is available to all communicant Anglicans., 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 Church of England (C of E) is the Anglican Christian state church of England. Headed by the Archbishop of Canterbury (currently Justin Welby) and primarily governed from London with the monarch as the supreme governor, the Church of England is also the mother church of the international Anglican Communion. The church dates its formal establishment as a national church to the 6th-century Gregorian mission in Kent led by Augustine of Canterbury, with considerable features introduced and established during and following the English Reformation in the 16th century., Canterbury (, or ) is a historic English cathedral city and UNESCO World Heritage Site, which lies at the heart of the City of Canterbury, a local government district of Kent, England. It lies on the River Stour., Wheston is a village in the Derbyshire Peak District. The population is included in the civil parish of Tideswell. Notable features include Wheston Hall and the Wheston Cross. The cross, which survives intact, is more than high, probably dates from the 14th century and marked the way from Tideswell to Buxton along the Forest Road. Images of the Madonna and Child and the Crucifixion are carved into it.
The village was formerly known as Whestone., The English Reformation was a series of events in 16th century England by which the Church of England broke away from the authority of the Pope and the Roman Catholic Church. These events were, in part, associated with the wider process of the European Protestant Reformation, a religious and political movement that affected the practice of Christianity across all of Europe during this period. Many factors contributed to the process: the decline of feudalism and the rise of nationalism, the rise of the common law, the invention of the printing press and increased circulation of the Bible, and the transmission of new knowledge and ideas among scholars, the upper and middle classes and readers in general. However, the various phases of the English Reformation, which also covered Wales and Ireland, were largely driven by changes in government policy, to which public opinion gradually accommodated itself., Mother church (Lat. "Mater Ecclesiae") is a term, especially in Catholicism, depicting the Christian Church as a mother in its functions of nourishing and protecting the believer. It may also refer to the mother church of a diocese i.e. Cathedral or a metropolitan church. The term has specific meanings within different Christian denominations., The church of St John the Baptist in Tideswell is a Church of England parish church ., A Christian (or ) is a person who follows or adheres to Christianity, an Abrahamic, monotheistic religion based on the life and teachings of Jesus Christ. "Christian" derives from the Koine Greek word "Christós" (), a translation of the Biblical Hebrew term "mashiach"., Derbyshire (or ; abbreviated Derbys. or Derbs.) is a county in the East Midlands of England. A substantial portion of the Peak District National Park lies within Derbyshire, containing the southern extremity of the Pennine range of hills which extend into the north of the county. The county contains part of the National Forest, and borders on Greater Manchester to the northwest, West Yorkshire to the north, South Yorkshire to the northeast, Nottinghamshire to the east, Leicestershire to the southeast, Staffordshire to the west and southwest and Cheshire also to the west.
Kinder Scout, at 636 metres (2,087 ft), is the highest point in the county, whilst Trent Meadows, where the River Trent leaves Derbyshire, is its lowest point at 27 metres (89 ft). The River Derwent is the county's longest river at 66 miles (106 km), and runs roughly north to south through the county. In 2003 the Ordnance Survey placed Church Flatts Farm at Coton in the Elms (near Swadlincote) as the furthest point from the sea in Great Britain., The Gregorian mission or Augustinian mission was sent by Pope Gregory the Great in 596 to convert Britain's Anglo-Saxons. Headed by Augustine of Canterbury, by the death of the last missionary in 635 the mission had established Christianity in southern Britain. Along with the Irish and Frankish missions it converted other parts of Britain as well and influenced the Hiberno-Scottish missions to Continental Europe., Augustine of Canterbury (first third of the 6th century  probably 26 May 604) was a Benedictine monk who became the first Archbishop of Canterbury in the year 597. He is considered the "Apostle to the English" and a founder of the English Church., 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., A national church is a Christian church associated with a specific ethnic group or nation state. The idea was notably discussed during the 19th century, during the emergence of modern nationalism., Justin Portal Welby (born 6 January 1956) is the 105th Archbishop of Canterbury and the most senior bishop in the Church of England. Welby was the vicar of Southam, Warwickshire, and most recently was the Bishop of Durham, serving for just over a year. As Archbishop of Canterbury he is the Primate of All England and the symbolic head of the worldwide Anglican Communion., Tideswell is a village and civil parish in the Peak District of Derbyshire, in England. It lies east of Buxton on the B6049, in a wide valley on a limestone plateau, at an altitude of above sea level, and is within the District of Derbyshire Dales. The population (including Wheston) was 1,820 in 2001, increasing slightly to 1,827 at the 2011 Census, making it the second-largest settlement within the National Park, after Bakewell., Subject: st john the baptist, Relation: located_in_the_administrative_territorial_entity, Options: (A) bakewell (B) buxton (C) canterbury (D) chatsworth (E) city of canterbury (F) city of london (G) cross (H) derbyshire (I) derbyshire dales (J) district (K) earth (L) england (M) essex (N) european union (O) greater london (P) hertfordshire (Q) ireland (R) isle of wight (S) leicestershire (T) london (U) mission (V) north (W) northern (X) nottinghamshire (Y) of (Z) portal ([) river (\) rock (]) south yorkshire (^) staffordshire (_) surrey (`) united kingdom (a) wales (b) welby (c) west (d) yorkshire
derbyshire dales

Context: John III (20 December 1537  17 November 1592) was King of Sweden from 1568 until his death. He was the son of King Gustav I of Sweden and his second wife Margaret Leijonhufvud. He was also, quite autonomously, the ruler of Finland, as "Duke John" from 1556 to 1563. In 1581 he assumed also the title Grand Prince of Finland. He attained the Swedish throne after a rebellion against his brother Eric XIV. He is mainly remembered for his attempts to close the gap between the newly established Lutheran Church of Sweden and the Catholic church., The Spanish Empire was one of the largest empires in history. It reached the peak of its military, political and economic power under the Spanish Habsburgs, through most of the 16th and 17th centuries, and its greatest territorial extent under the House of Bourbon in the 18th century, when it was the largest empire in the world. The Spanish Empire became the foremost global power of its time and was the first to be called "the empire on which the sun never sets"., A composite monarchy (or composite state) is a historical category, introduced by J. H. Elliott, that describes early modern states consisting of several countries under one ruler, who governs his territories as if they were separate kingdoms, in accordance with local traditions and legal structures. The composite state was the typical kind in the early modern period. H. G. Koenigsberger divides composite states into two classes: those, like the Spanish Empire, that consisted of countries separated by either other states or by the sea, and those, like PolandLithuania, that were contiguous., Sigismund III Vasa ( also known as Sigismund III of Poland , Polish : Zygmunt III Waza , Lithuanian : Žygimantas Vaza , English exonym : Sigmund ; 20 June 1566 -- 30 April 1632 N.S. ) was King of Poland and Grand Duke of Lithuania , monarch of the united Polish -- Lithuanian Commonwealth from 1587 to 1632 , and King of Sweden ( where he is known simply as Sigismund ) from 1592 as a composite monarchy until he was deposed in 1599 . He was the son of King John III of Sweden and his first wife , Catherine Jagellonica of Poland . Elected to the throne of the Polish -- Lithuanian Commonwealth , Sigismund sought to create a personal union between the Commonwealth and Sweden ( Polish -- Swedish union ) , and succeeded for a time in 1592 . After he had been deposed in 1599 from the Swedish throne by his uncle , Charles IX of Sweden , and a meeting of the Riksens ständer ( Swedish Riksdag ) , he spent much of the rest of his life attempting to reclaim it . Shortly after his victory over his internal enemies , Sigismund took advantage of a period of civil unrest in Muscovy ( known as the Time of Troubles ) and invaded Russia , holding Moscow for two years ( 1610 -- 12 ) and Smolensk thereafter . In 1617 the Polish -- Swedish conflict , which had been interrupted by an armistice in 1611 , broke out again . While Sigismund 's army was also fighting Ottoman forces in Moldavia ( 1617 -- 21 ) , King Gustavus II Adolphus of Sweden ( Charles IX 's son ) invaded Sigismund 's lands , capturing Riga ( 1621 ) and seizing almost all of Polish Livonia . Sigismund , who concluded the Truce of Altmark with Sweden in 1629 , never regained the Swedish crown . His Swedish wars resulted , moreover , in Poland 's loss of Livonia and in a diminution of the kingdom 's international prestige . Sigismund remains a highly controversial figure in Poland . His long reign coincided with the apex of the Polish -- Lithuanian Commonwealth 's prestige , power and economic influence . On the other hand , it was during his reign that the symptoms of decline leading to the Commonwealth 's eventual demise surfaced . Popular histories , such as the books of Pawe Jasienica , tend to present Sigismund as the principal source of these destructive processes ; whereas academic histories are usually not as damning of him . However , the question of whether the Commonwealth 's decline was caused by Sigismund 's decisions or had its roots in historical processes beyond his personal control , remains a highly debated topic . He was commemorated in Warsaw with Sigismund 's Column , commissioned by his son and successor , Wadysaw IV., Gustav I, born Gustav Eriksson of the Vasa noble family and later known as Gustav Vasa (12 May 1496  29 September 1560), was King of Sweden from 1523 until his death in 1560, previously self-recognised Protector of the Realm ("Riksföreståndare") from 1521, during the ongoing Swedish War of Liberation against King Christian II of Denmark, Norway and Sweden. Initially of low standing, Gustav rose to lead the rebel movement following the Stockholm Bloodbath, in which his father perished. Gustav's election as King on 6 June 1523 and his triumphant entry into Stockholm eleven days later meant the end of Medieval Sweden's elective monarchy and the Kalmar Union, and the birth of a hereditary monarchy under the House of Vasa and its successors, including the current House of Bernadotte., Subject: sigismund iii vasa, Relation: noble_family, Options: (A) house of bourbon (B) house of vasa
house of vasa

Context: Astronomy is a natural science that studies celestial objects and phenomena. It applies mathematics, physics, and chemistry, in an effort to explain the origin of those objects and phenomena and their evolution. Objects of interest include planets, moons, stars, galaxies, and comets; while the phenomena include supernovae explosions, gamma ray bursts, and cosmic microwave background radiation. More generally, all astronomical phenomena that originate outside Earth's atmosphere are within the purview of astronomy. A related but distinct subject, physical cosmology, is concerned with the study of the Universe as a whole., The Maksutov (also called a "Mak") is a catadioptric telescope design that combines a spherical mirror with a weakly negative meniscus lens in a design that takes advantage of all the surfaces being nearly "spherically symmetrical". The negative lens is usually full diameter and placed at the entrance pupil of the telescope (commonly called a "corrector plate" or "meniscus corrector shell"). The design corrects the problems of off-axis aberrations such as coma found in reflecting telescopes while also correcting chromatic aberration. It was patented in 1941 by Russian optician Dmitri Dmitrievich Maksutov. Maksutov based his design on the idea behind the Schmidt camera of using the spherical errors of a negative lens to correct the opposite errors in a spherical primary mirror. The design is most commonly seen in a Cassegrain variation, with an integrated secondary, that can use all-spherical elements, thereby simplifying fabrication. Maksutov telescopes have been sold on the amateur market since the 1950s., Amateur astronomy is a hobby whose participants enjoy watching the sky, and the abundance of objects found in it with the unaided eye, binoculars, or telescopes. Even though scientific research is not their main goal, many amateur astronomers make a contribution to astronomy by monitoring variable stars, tracking asteroids and discovering transient objects, such as comets and novae., A reflecting telescope (also called a reflector) is an optical telescope which uses a single or combination of curved mirrors that reflect light and form an image. The reflecting telescope was invented in the 17th century as an alternative to the refracting telescope which, at that time, was a design that suffered from severe chromatic aberration. Although reflecting telescopes produce other types of optical aberrations, it is a design that allows for very large diameter objectives. Almost all of the major telescopes used in astronomy research are reflectors. Reflecting telescopes come in many design variations and may employ extra optical elements to improve image quality or place the image in a mechanically advantageous position. Since reflecting telescopes use mirrors, the design is sometimes referred to as a "catoptric" telescope., John F. Gregory ( 1927 -- November 14 , 2009 ) was an American optical engineer and a popularizer of amateur telescope making . He is credited with the design of a version of the Maksutov telescope called the `` Gregory - Maksutov telescope '' ., Amateur telescope making is the activity of building telescopes as a hobby, as opposed to being a paid professional. Amateur telescope makers (sometimes called ATMs) build their instruments for personal enjoyment of a technical challenge, as a way to obtain an inexpensive or personally customized telescope, or as a research tool in the field of astronomy. Amateur telescope makers are usually a sub-group in the field of amateur astronomy., Subject: john f. gregory, Relation: occupation, Options: (A) major (B) optician (C) pupil (D) research (E) science

optician