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: Martin D. Hardin ( June 21 , 1780 -- October 8 , 1823 ) was a politician and lawyer from Kentucky . Born in Pennsylvania , his family immigrated to Kentucky when he was still young . He studied law under George Nicholas and commenced practice at Richmond , Kentucky . His cousin , future U.S. Representative Benjamin Hardin , studied in his law office . He represented Madison County in the Kentucky House of Representatives for a single term . Hardin later moved to Frankfort and was elected to the Kentucky House to represent Franklin County . Governor Isaac Shelby appointed him Secretary of State soon after his election . Concurrent with his service , he participated in the War of 1812 , serving alongside future Kentucky Governor George Madison as majors in Colonel John Allen 's militia unit . Following the expiration of his term as Secretary of State , Governor Gabriel Slaughter appointed Hardin to the U.S. Senate seat vacated by William T. Barry , who resigned . Hardin served the remainder of Barry 's term -- approximately one year -- and did not seek re-election . In 1819 , he was elected to the Kentucky House for a third time and was chosen Speaker of the House . He died October 8 , 1823 . Hardin married the daughter of Kentucky pioneer Benjamin Logan , and their son , John J. Hardin , represented Illinois in the U.S. House of Representatives before being killed at the Battle of Buena Vista . In his book Life of Lincoln , Ward Hill Lamon speculated that future President Abraham Lincoln may have been the illegitimate child of Hardin and Nancy Hanks , but the rumor was later debunked ., George Nicholas (c. 1754  July 25, 1799) was the first professor of law at Transylvania University in Kentucky. He was also briefly attorney general of Kentucky, and had been several times a member of the Virginia House of Delegates. He was the son of Robert C. Nicholas, Sr.; his brothers included Wilson Cary Nicholas. He was the father of Robert C. Nicholas. He was a friend and correspondent of James Madison; he was also extremely fat, and Madison laughed until he cried at a caricature of Nicholas, during the Virginia convention to ratify the United States Constitution, as a plum pudding with legs., The Kentucky General Assembly, also called the Kentucky Legislature, is the state legislature of the U.S. state of Kentucky., Kentucky, officially the Commonwealth of Kentucky, is a state located in the east south-central region of the United States. Kentucky is one of four U.S. states constituted as a commonwealth (the others being Virginia, Pennsylvania, and Massachusetts). Originally a part of Virginia, in 1792 Kentucky became the 15th state to join the Union. Kentucky is the 37th most extensive and the 26th most populous of the 50 United States., Madison County is a county located in the U.S. state of Kentucky. As of the 2010 census, the population was 82,916. Its county seat is Richmond. The county is named for Virginia statesman James Madison, who later became the fourth President of the United States., New Jersey is a state in the Northeastern United States and mid-Atlantic regions of the United States. It is bordered on the north and east by New York, on the southeast and south by the Atlantic Ocean, on the west by Pennsylvania, and on the southwest by Delaware. New Jersey is the fourth-smallest state but the 11th-most populous and the most densely populated of the 50 United States. New Jersey lies entirely within the combined statistical areas of New York City and Philadelphia and is the third-wealthiest U.S. state by per capita income as of 2014., Lake Erie is the fourth-largest lake (by surface area) of the five Great Lakes in North America, and the thirteenth-largest globally if measured in terms of surface area. It is the southernmost, shallowest, and smallest by volume of the Great Lakes and therefore also has the shortest average water residence time. At its deepest point Lake Erie is deep. Lake Erie's northern shore is bounded by the Canadian province of Ontario, with the U.S. states of Ohio, Pennsylvania, and New York on its southern and easternmost shores and Michigan on the west. These jurisdictions divide the surface area of the lake by water boundaries. The lake was named by the Erie people, a Native Americans people who lived along its southern shore. That Iroquoian tribe called it ""Erige"" "("cat")" because of its unpredictable and sometimes violently dangerous nature. It is a matter of conjecture whether the lake was named after the tribe, or if the tribe was called ""Erie"" because of its proximity to the lake., Martin Davis Hardin (June 26, 1837  December 12, 1923) was a brigadier general in the Union Army during the American Civil War. He was appointed a brigadier general on July 6, 1864, to rank from July 2, 1864, the date of U.S. Senate confirmation of his promotion., The United States Constitution is the supreme law of the United States of America. The Constitution, originally comprising seven articles, delineates the national frame of government. Its first three articles entrench the doctrine of the separation of powers, whereby the federal government is divided into three branches: the legislative, consisting of the bicameral Congress; the executive, consisting of the President; and the judicial, consisting of the Supreme Court and other federal courts. Articles Four, Five and Six entrench concepts of federalism, describing the rights and responsibilities of state governments and of the states in relationship to the federal government. Article Seven establishes the procedure subsequently used by the thirteen States to ratify it., Bardstown is a home rule-class city in Nelson County, Kentucky, in the United States. The population was recorded as 11,700 by the 2010 census. It is the county seat of Nelson County. It is named for the pioneering Bard brothers. David Bard obtained a land grant in 1785 in what was then Jefferson County, Virginia from Governor Patrick Henry. William Bard surveyed and platted the town. It was originally chartered as Baird's Town., Pennsylvania (Pennsylvania German: "Pennsylvaani"), officially the Commonwealth of Pennsylvania, is a state located in the northeastern and Mid-Atlantic regions of the United States. The Appalachian Mountains run through its middle. The commonwealth borders Delaware to the southeast, Maryland to the south, West Virginia to the southwest, Ohio to the west, Lake Erie and the Canadian province of Ontario to the northwest, New York to the north, and New Jersey to the east., Richmond is a city in and the county seat of Madison County, Kentucky, United States. It is named after Richmond, Virginia, and is the home of Eastern Kentucky University. The population was 33,533 in 2015. Richmond is the third-largest city in the Bluegrass region (after Louisville and Lexington) and the state's sixth-largest city. Richmond serves as the center for work and shopping for south-central Kentucky. Richmond is the principal city of the RichmondBerea Micropolitan Statistical Area, which includes all of Madison and Rockcastle counties., In most common law jurisdictions, the attorney general (sometimes abbreviated as AG) or attorney-general (pluralized as attorneys general or attorneys-general, as "general" is a postpositive adjective) is the main legal advisor to the government, and in some jurisdictions they may also have executive responsibility for law enforcement, prosecutions or even responsibility for legal affairs generally. In practice, the extent to which the attorney-general personally provides legal advice to the government varies between jurisdictions, and even between individual office-holders within the same jurisdiction, often depending on the level and nature of the office-holder's prior legal experience., Delaware is a state located in the Mid-Atlantic and/or Northeastern regions of the United States. It is bordered to the south and west by Maryland, to the northeast by New Jersey, and to the north by Pennsylvania. The state takes its name from Thomas West, 3rd Baron De La Warr, an English nobleman and Virginia's first colonial governor., James Madison, Jr., (March 16 [O.S. March 5], 1751  June 28, 1836) was an American statesman and Founding Father who served as the fourth President of the United States from 1809 to 1817. He is hailed as the "Father of the Constitution" for his pivotal role in drafting and promoting the United States Constitution and the Bill of Rights., Virginia (, officially the Commonwealth of Virginia) is a state located in the Mid-Atlantic region of the United States, as well as in the historic Southeast. Virginia is nicknamed the "Old Dominion" due to its status as the first colonial possession established in mainland British America, and "Mother of Presidents" because eight U.S. presidents were born there, more than any other state. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna. The capital of the Commonwealth is Richmond; Virginia Beach is the most populous city, and Fairfax County is the most populous political subdivision. The Commonwealth's estimated population is over 8.3 million, which is slightly less than New York City., Robert Carter Nicholas (January 10, 1787  December 24, 1856) was a United States Senator from Louisiana. He was a veteran of the War of 1812, and also served as Secretary of State of Louisiana and Louisiana's Superintendent of Education., Law is a system of rules that are created and enforced through social or governmental institutions to regulate behavior. State-enforced laws can be made by a collective legislature or by a single legislator, resulting in statutes, by the executive through decrees and regulations, or established by judges through precedent, normally in common law jurisdictions. Private individuals can create legally binding contracts, including arbitration agreements that may elect to accept alternative arbitration to the normal court process. The formation of laws themselves may be influenced by a constitution, written or tacit, and the rights encoded therein. The law shapes politics, economics, history and society in various ways and serves as a mediator of relations between people., Massachusetts ; officially the Commonwealth of Massachusetts, is the most populous state in the New England region of the northeastern United States. It is bordered by the Atlantic Ocean to the east, the states of Connecticut and Rhode Island to the south, New Hampshire and Vermont to the north, and New York to the west. The state is named for the Massachusett tribe, which once inhabited the area. The capital of Massachusetts and the most populous city in New England is Boston. Over 80% of Massachusetts' population lives in the Greater Boston metropolitan area, a region influential upon American history, academia, and industry. Originally dependent on agriculture, fishing and trade, Massachusetts was transformed into a manufacturing center during the Industrial Revolution. During the 20th century, Massachusetts' economy shifted from manufacturing to services. Modern Massachusetts is a global leader in biotechnology, engineering, higher education, finance, and maritime trade., Benjamin Hardin (February 29, 1784  September 24, 1852) was a United States Representative from Kentucky. Martin Davis Hardin was his cousin. He was born at the Georges Creek settlement on the Monongahela River, Westmoreland County, Pennsylvania and then moved with his parents to Washington County, Kentucky in 1788. Hardin attended the schools of Nelson and Washington Counties, Kentucky before studying law. He was admitted to the bar in 1806 and commenced practice in Elizabethtown and Bardstown, Nelson County, Kentucky and he settled in Bardstown, Kentucky in 1808., Wilson Cary Nicholas (January 31, 1761October 10, 1820) was an American politician who served in the U.S. Senate from 1799 to 1804 and was the 19th Governor of Virginia from 1814 to 1816., The Appalachian Mountains, often called the Appalachians, are a system of mountains in eastern North America. The Appalachians first formed roughly 480 million years ago during the Ordovician Period. It once reached elevations similar to those of the Alps and the Rocky Mountains before naturally occurring erosion. The Appalachian chain is a barrier to east-west travel, as it forms a series of alternating ridgelines and valleys oriented in opposition to most roads running east or west., The Kentucky House of Representatives is the lower house of the Kentucky General Assembly. It is composed of 100 Representatives elected from single-member districts throughout the Commonwealth. Not more than two counties can be joined to form a House district, except when necessary to preserve the principle of equal representation. Representatives are elected to two-year terms with no term limits. The Kentucky House of Representatives convenes at the State Capitol in Frankfort., Subject: martin d. hardin, Relation: position_held, Options: (A) 12 (B) 3 (C) advisor (D) attorney general (E) attorney general of kentucky (F) baron (G) congress (H) governor (I) kentucky general assembly (J) leader (K) legislator (L) mother (M) opposition (N) politician (O) president (P) prior (Q) professor (R) senator (S) state legislature (T) united states representative (U) united states senator (V) virginia beach (W) york
united states senator

Context: Edmonton is the capital city of the Canadian province of Alberta. Edmonton is on the North Saskatchewan River and is the centre of the Edmonton Capital Region, which is surrounded by Alberta's central region., FOREST (short for "Freedom Organisation for the Right to Enjoy Smoking Tobacco") is a United Kingdom political pressure group which campaigns against tobacco control activity., British Columbia (BC) is the westernmost province of Canada, with a population of more than four million people located between the Pacific Ocean and the Rocky Mountains. 
British Columbia is also a component of the Pacific Northwest and the Cascadia bioregion, along with the U.S. states of Idaho, Oregon, Washington and Alaska., Calgary is a city in the Canadian province of Alberta. It is situated at the confluence of the Bow River and the Elbow River in the south of the province, in an area of foothills and prairie, about east of the front ranges of the Canadian Rockies. In the 2011 census, the City of Calgary had a population of 1,096,833 and a metropolitan population of 1,214,839, making it the largest city in Alberta, and the third-largest municipality and fifth-largest census metropolitan area (CMA) in Canada., A city is a large and permanent human settlement. Although there is no agreement on how a city is distinguished from a town in general English language meanings, many cities have a particular administrative, legal, or historical status based on local law., Toronto is the most populous city in Canada, the provincial capital of Ontario, and the centre of the Greater Toronto Area, the most populous metropolitan area in Canada. Growing in population, the 2011 census recorded a population of 2,615,060. As of 2015, the population is now estimated at 2,826,498, making Toronto the fourth-largest city in North America based on the population within its city limits. Toronto trails only Mexico City, New York City, and Los Angeles by this measure, while it is the fifth-largest (behind also Chicago) if ranked by the size of its metropolitan area . An established global city, Toronto is an international centre of business, finance, arts, and culture, and widely recognized as one of the most multicultural and cosmopolitan cities in the world., A town is a human settlement larger than a village but smaller than a city. The size definition for what constitutes a "town" varies considerably in different parts of the world., In many countries, a mayor (or , from the Latin "maior" , meaning "bigger") is the highest-ranking official in a municipal government such as that of a city or a town., Michael Franklin Harcourt ( born January 6 , 1943 ) served as the 30th Premier of the province of British Columbia in Canada from 1991 to 1996 , and before that as the 34th mayor of BC 's largest city , Vancouver from 1980 to 1986 . Harcourt was student council president at Sir Winston Churchill Secondary School and studied at the University of British Columbia , where he obtained a Bachelor of Arts and a Bachelor of Laws . He founded and became the first director ( 1969 - 71 ) of the Vancouver Community Legal Assistance Society , reputedly Canada 's first community law office . Harcourt served as a Vancouver alderman from 1973 to 1980 , and as Mayor of Vancouver from 1980 to 1986 . As mayor , his term in office was dominated by planning for Expo 86 , an event that saw many new developments come to the city . He was first elected to the British Columbia Legislature in the 1986 British Columbia provincial election . He became the leader of the British Columbia New Democratic Party ( NDP ) and the Leader of the Official Opposition in the following year . He was considered to be a moderate within the ranks of his social democratic party . In the 1991 provincial election , Harcourt led the NDP back to power , defeating the Social Credit party led by Rita Johnston . This marked the second time that the NDP had ever been in power in BC , and the first since 1975 . Harcourt resigned as premier in February 1996 as the result of `` Bingogate , '' a scandal in which an NDP member , former B.C. MLA and MP , David Stupich , used money raised by a charity bingo to fund the party . While it was determined by a BC Ministry of Justice Special Prosecutor that Harcourt was not directly responsible for the scandal , he took political responsibility for it . He was succeeded as premier by Glen Clark , who also ended up resigning as the result of another scandal . After serving as premier , Harcourt became associated with the University of British Columbia ( UBC ) . He was involved in research relating to sustainable development and cities . He was severely injured in a near - fatal fall at his cottage on Pender Island in November 2002 , which resulted in a severe spinal - cord injury . The former premier received a widespread outpouring of empathy and support from his fellow British Columbians and his rapid recovery astonished doctors . He spent several months at the world - renowned facility GF Strong . He later published a book about his ordeal , called Plan B. He was named as a special advisor to Prime Minister Paul Martin on cities on December 12 , 2003 . His latest book , City Making in Paradise , was released in August 2007 . In November 2007 , he received an honorary doctoral degree in Law ( LL.D ) from UBC . In February 2009 he was appointed associate director of the new UBC Continuing Studies Centre for Sustainability , where he will contribute to the development of educational programs that emphasize practical knowledge in tackling climate change and other sustainability issues . In the January 31st , 2014 issue of `` High Country News '' , Harcourt stated he was recruited in the 1960s by an activist group to oppose a freeway that would have connected the Trans - Canada Highway to downtown Vancouver . ' You 've been hired to stop the freeway , ' he recalled in the article . Harcourt revealed in April 2014 that he had allowed his NDP membership to lapse and now considers himself an independent . `` I do n't know whether it 's a trial separation or a decree absolute , `` he told the Globe and Mail in an interview . Harcourt cited several complaints against his former party including former leader Adrian Dix 's decision to oppose the Kinder - Morgan pipeline and the party 's general disposition against mining , logging and other resource - extraction industries , the party 's 2009 opposition to the BC Liberal government 's proposed carbon tax , and the 2010 caucus revolt that forced the resignation of then - leader Carole James . Harcourt had repeatedly supported the legalization of cannabis and in May 2014 announced that he would be an advisor to True Leaf Medicine Inc. , a Vernon - based start - up company seeking Health Canada approval to produce and sell medicinal marijuana . Harcourt sits as an advisor to Canada 's Ecofiscal Commission ., Vancouver, officially the City of Vancouver, is a coastal seaport city on the mainland of British Columbia, Canada, and the most populous city in the province., The Pacific Northwest (in the United States, commonly abbreviated as PNW), sometimes referred to as Cascadia, is a geographic region in western North America bounded by the Pacific Ocean to the west and loosely, by the Rocky Mountains on the east. Though no agreed boundary exists, a common conception includes the U.S. states of Oregon and Washington and the Canadian province of British Columbia. Broader conceptions reach north into Alaska and Yukon, south into far northern California and east to the Continental Divide, thus including Idaho, Western Montana, and western Wyoming. Narrower conceptions may be limited to the northwestern US or to the coastal areas west of the Cascade and Coast mountains. The variety of definitions can be attributed to partially overlapping commonalities of the region's history, geography, society, and other factors., Quebec City (pronounced or ) officially Québec) is the capital city of the Canadian province of Quebec. In 2015 the city had a population estimate of 545,485, and the metropolitan area had a population of 806,400, making it Canada's seventh-largest metropolitan area and Quebec's second-largest city after Montreal, which is about to the southwest. , Idaho is a state in the northwestern region of the United States. It borders the state of Montana to the east and northeast, Wyoming to the east, Nevada and Utah to the south, and Washington and Oregon to the west. To the north, it shares a small portion of the Canadian border with the province of British Columbia. With a population of around 1.7 million people and an area of , Idaho is the 14th largest and 39th most populous of the 50 states. The state's capital and largest city is Boise., Canada (French: ) is a country in the northern half of North America. Its ten provinces and three territories extend from the Atlantic to the Pacific and northward into the Arctic Ocean, covering , making it the world's second-largest country by total area and the fourth-largest country by land area. Canada's border with the United States is the world's longest land border. The majority of the country has a cold or severely cold winter climate, but southerly areas are warm in summer. Canada is sparsely populated, the majority of its land territory being dominated by forest and tundra and the Rocky Mountains. About four-fifths of the country's population of 36 million people is urbanized and live near the southern border. Its capital is Ottawa, its largest city is Toronto; other major urban areas include Montreal, Vancouver, Calgary, Edmonton, Quebec City, Winnipeg and Hamilton., The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south and is bounded by Asia and Australia in the west and the Americas in the east., In physical geography, tundra is a type of biome where the tree growth is hindered by low temperatures and short growing seasons. The term "tundra" comes through Russian  ("tûndra") from the Kildin Sami word "tndâr" "uplands", "treeless mountain tract". There are three types of tundra: Arctic tundra, alpine tundra, and Antarctic tundra. In tundra, the vegetation is composed of dwarf shrubs, sedges and grasses, mosses, and lichens. Scattered trees grow in some tundra regions. The ecotone (or ecological boundary region) between the tundra and the forest is known as the tree line or timberline., A province is almost always an administrative division, within a country or state. The term derives from the ancient Roman "provincia", which was the major territorial and administrative unit of the Roman Empire's territorial possessions outside Italy. The term province has since been adopted by many countries, and in those with no actual provinces, it has come to mean "outside the capital city". While some provinces were produced artificially by colonial powers, others were formed around local groups with their own ethnic identities. Many have their own powers independent of federal authority, especially in Canada. In other countries, like China, provinces are the creation of central government, with very little autonomy., Winnipeg is the capital and largest city of the province of Manitoba in Canada. It is located near the longitudinal centre of North America, at the confluence of the Red and Assiniboine Rivers., Alaska is a U.S. state located in the northwest extremity of North America. The Canadian administrative divisions of British Columbia and Yukon border the state to the east; its most extreme western part is Attu Island; it has a maritime border with Russia to the west across the Bering Strait. To the north are the Chukchi and Beaufort seasthe southern parts of the Arctic Ocean. The Pacific Ocean lies to the south and southwest. Alaska is the largest state in the United States by area, the 3rd least populous and the least densely populated of the 50 United States. Approximately half of Alaska's residents (the total estimated at 738,432 by the U.S. Census Bureau in 2015) live within the Anchorage metropolitan area. Alaska's economy is dominated by the fishing, natural gas, and oil industries, resources which it has in abundance. Military bases and tourism are also a significant part of the economy., A U.S. state is a constituent political entity of the United States of America. There are 50 states, which are bound together in a union with each other. Each state holds administrative jurisdiction over a defined geographic territory, and shares its sovereignty with the United States federal government. Due to the shared sovereignty between each state and the federal government, Americans are citizens of both the federal republic and of the state in which they reside. State citizenship and residency are flexible, and no government approval is required to move between states, except for persons covered by certain types of court orders (e.g., paroled convicts and children of divorced spouses who are sharing custody)., Latin (Latin: ) is a classical language belonging to the Italic branch of the Indo-European languages. The Latin alphabet is derived from the Etruscan and Greek alphabets., Ottawa is the capital city of Canada. It stands on the south bank of the Ottawa River in the eastern portion of southern Ontario. Ottawa borders Gatineau, Quebec; the two form the core of the OttawaGatineau census metropolitan area (CMA) and the National Capital Region (NCR). The 2011 census reported a population of 883,391, making it the fourth-largest city in Canada; and 1,236,324 within the CMA, making it the fourth-largest CMA in Canada. The City of Ottawa reported that the city had an estimated population of 960,754 as of December 2015., An "official" is someone who holds an office (function or mandate, regardless whether it carries an actual working space with it) in an organization or government and participates in the exercise of authority (either their own or that of their superior and/or employer, public or legally private)., Montreal officially Montréal in both Canadian English and French, is the most populous municipality in Quebec and the 2nd-most populous in Canada. Originally called "Ville-Marie", or "City of Mary," it is named after Mount Royal, the triple-peaked hill in the heart of the city. The city is on the Island of Montreal, which took its name from the same source as the city, and a few much smaller peripheral islands, the largest of which is Île Bizard. It has a distinct four-season continental climate with warm to hot summers and cold snowy winters., The Rocky Mountains, commonly known as the Rockies, are a major mountain range in western North America. The Rocky Mountains stretch more than from the northernmost part of British Columbia, in western Canada, to New Mexico, in the southwestern United States. Within the North American Cordillera, the Rockies are somewhat distinct from the Pacific Coast Ranges and the Cascade Range and Sierra Nevada which all lie further to the west., Subject: mike harcourt, Relation: place_of_birth, Options: (A) alaska (B) alberta (C) alpine (D) boise (E) bow (F) british columbia (G) calgary (H) california (I) canada (J) canadian (K) capital city (L) cascade (M) central (N) chicago (O) columbia (P) edmonton (Q) forest (R) idaho (S) italy (T) legal (U) manitoba (V) mary (W) mexico city (X) montana (Y) montreal (Z) montréal ([) most (\) new mexico (]) new york (^) of (_) ontario (`) ottawa (a) pacific (b) pacific ocean (c) province of canada (d) quebec (e) quebec city (f) republic (g) rocky mountains (h) roman (i) roman empire (j) south bank (k) superior (l) toronto (m) united kingdom (n) vancouver (o) washington (p) winnipeg (q) winters (r) wyoming
edmonton

Context: The butterfly kingfish ("Gasterochisma melampus") is an ocean-dwelling ray-finned bony fish in the mackerel family, Scombridae  a family which it shares with the tunas, mackerels, Spanish mackerels, and bonitos. Unlike the 50 species from those four tribes, however, this species is unique in that it is the only scombrid to be classified apart from the rest, into the subfamily Gasterochismatinae and genus "Gasterochisma"., A tuna is a saltwater finfish that belongs to the tribe Thunnini , a sub-grouping of the mackerel family ( Scombridae ) -- which together with the tunas , also includes the bonitos , mackerels , and Spanish mackerels . Thunnini comprises fifteen species across five genera , the sizes of which vary greatly , ranging from the bullet tuna ( max. length : 50 cm ( 1.6 ft ) , weight : 1.8 kg ( 4 lb ) ) up to the Atlantic bluefin tuna ( max. length : 4.6 m ( 15 ft ) , weight : 684 kg ( 1,508 lb ) ) . The bluefin averages 2 m ( 6.6 ft ) , and is believed to live for up to 50 years . Tuna and mackerel sharks are the only species of fish that can maintain a body temperature higher than that of the surrounding water . An active and agile predator , the tuna has a sleek , streamlined body , and is among the fastest - swimming pelagic fish -- the yellowfin tuna , for example , is capable of speeds of up to 75 km / h ( 47 mph ) . Found in warm seas , it is extensively fished commercially , and is popular as a game fish . As a result of over-fishing , stocks of some tuna species such as the southern bluefin tuna have been reduced dangerously close to the point of extinction ., Amphibians are ectothermic, tetrapod vertebrates of the class Amphibia. Modern amphibians are all Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arboreal or freshwater aquatic ecosystems. Thus amphibians typically start out as larvae living in water, but some species have developed behavioural adaptations to bypass this. The young generally undergo metamorphosis from larva with gills to an adult air-breathing form with lungs. Amphibians use their skin as a secondary respiratory surface and some small terrestrial salamanders and frogs lack lungs and rely entirely on their skin. They are superficially similar to lizards but, along with mammals and birds, reptiles are amniotes and do not require water bodies in which to breed. With their complex reproductive needs and permeable skins, amphibians are often ecological indicators; in recent decades there has been a dramatic decline in amphibian populations for many species around the globe., Hagfish, the class Myxini (also known as Hyperotreti), are eel-shaped, slime-producing marine fish (occasionally called slime eels). They are the only known living animals that have a skull but no vertebral column. Along with lampreys, hagfish are jawless; they are the sister group to vertebrates, and living hagfish remain similar to hagfish from around 300 million years ago., An ocean (the sea of classical antiquity) is a body of saline water that composes much of a planet's hydrosphere. On Earth, an ocean is one of the major conventional divisions of the World Ocean, which covers almost 71% of its surface. These are, in descending order by area, the Pacific, Atlantic, Indian, Southern (Antarctic), and Arctic Oceans. The word "sea" is often used interchangeably with "ocean" in American English but, strictly speaking, a sea is a body of saline water (generally a division of the world ocean) partly or fully enclosed by land., In biology, a species (abbreviated sp., with the plural form species abbreviated spp.) is the basic unit of biological classification and a taxonomic rank. A species is often defined as the largest group of organisms in which two individuals can produce fertile offspring, typically by sexual reproduction. While this definition is often adequate, looked at more closely it is often problematic. For example, in a species complex, the boundaries between closely related species become unclear or disappear altogether. Other ways of defining species include similarity of DNA, morphology, or ecological niche. The presence of locally adaptive traits may further subdivide species into infraspecific taxa such as subspecies., Water is a transparent and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms. Its chemical formula is HO, meaning that its molecule contains one oxygen and two hydrogen atoms, that are connected by covalent bonds. Water strictly refers to the liquid state of that substance, that prevails at standard ambient temperature and pressure; but it often refers also to its solid state (ice) or its gaseous state (steam or water vapor). It also occurs in nature as snow, glaciers, ice packs and icebergs, clouds, fog, dew, aquifers, and atmospheric humidity., Mammals are any vertebrates within the class Mammalia (from Latin "mamma" "breast"), a clade of endothermic amniotes distinguished from reptiles and birds by the possession of a neocortex (a region of the brain), hair, three middle ear bones and mammary glands. The sister group of mammals may be the extinct "Haldanodon." The mammals represent the only living Synapsida, which together with the Sauropsida form the Amniota clade. The mammals consist of the Yinotheria including monotrema and the Theriiformes including the theria., Sexual reproduction is a form of reproduction where two morphologically distinct types of specialized reproductive cells called gametes fuse together, involving a female's large ovum (or egg) and a male's smaller sperm. Each gamete contains half the number of chromosomes of normal cells. They are created by a specialized type of cell division, which only occurs in eukaryotic cells, known as meiosis. The two gametes fuse during fertilization to produce DNA replication and the creation of a single-celled zygote which includes genetic material from both gametes. In a process called genetic recombination, genetic material (DNA) joins up so that homologous chromosome sequences are aligned with each other, and this is followed by exchange of genetic information. Two rounds of cell division then produce four daughter cells with half the number of chromosomes from each original parent cell, and the same number of chromosomes as both parents, though self-fertilization can occur. For instance, in human reproduction each human cell contains 46 chromosomes, 23 pairs, except gamete cells, which only contain 23 chromosomes, so the child will have 23 chromosomes from each parent genetically recombined into 23 pairs. Cell division initiates the development of a new individual organism in multicellular organisms, including animals and plants, for the vast majority of whom this is the primary method of reproduction., Hydrogen is a chemical element with chemical symbol H and atomic number 1. With an atomic weight of , hydrogen is the lightest element on the periodic table. Its monatomic form (H) is the most abundant chemical substance in the Universe, constituting roughly 75% of all baryonic mass. Non-remnant stars are mainly composed of hydrogen in the plasma state. The most common isotope of hydrogen, termed "protium" (name rarely used, symbol H), has one proton and no neutrons., A lake is an area of variable size filled with water, localized in a basin, that is surrounded by land, apart from any river or other outlet that serves to feed or drain the lake. Lakes lie on land and are not part of the ocean, and therefore are distinct from lagoons, and are also larger and deeper than ponds, though there are no official or scientific definitions. Lakes can be contrasted with rivers or streams, which are usually flowing. Most lakes are fed and drained by rivers and streams., 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., The Scombridae family of the mackerels, tunas, and bonitos includes many of the most important and familiar food fishes. The family consists of 51 species in 15 genera and two subfamilies. All species are in the subfamily Scombrinae, except the butterfly kingfish, which is the sole member of subfamily Gasterochismatinae., A craniate is a member of Craniata (sometimes Craniota), a proposed clade of chordate animals that contains the Myxini (hagfish), Petromyzontida (including lampreys), and the much more numerous Gnathostomata (jawed vertebrates) as living representatives. As the name suggests, craniates are animals with a (hard bone or cartilage) skull in phylum Chordata., A fin is a thin component or appendage attached to a larger body or structure. Fins typically function as foils that produce lift or thrust, or provide the ability to steer or stabilize motion while traveling in water, air, or other fluid media. Fins are also used to increase surface areas for heat transfer purposes, or simply as ornamentation., The Atlantic bluefin tuna ("Thunnus thynnus") is a species of tuna in the family Scombridae. It is variously known as the northern bluefin tuna (mainly when including Pacific bluefin as a subspecies), giant bluefin tuna (for individuals exceeding ) and formerly as the tunny., A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding. For many molecules, the sharing of electrons allows each atom to attain the equivalent of a full outer shell, corresponding to a stable electronic configuration., 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., A gill is a respiratory organ found in many aquatic organisms that extracts dissolved oxygen from water and excretes carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are kept moist. The microscopic structure of a gill presents a large surface area to the external environment., Bonitos are a tribe of medium-sized, ray-finned predatory fish in the family Scombridae  a family it shares with the mackerel, tuna, and Spanish mackerel tribes, and also the butterfly kingfish. Also called the Sardini tribe, it consists of eight species across four genera; three of those four genera are monotypic, having a single species each., Reptiles are tetrapod (four-limbed vertebrate) animals in the class Reptilia, comprising today's turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives. The study of these traditional reptile orders, historically combined with that of modern amphibians, is called herpetology., Deoxyribonucleic acid (DNA) is a molecule that carries the genetic instructions used in the growth, development, functioning and reproduction of all known living organisms and many viruses. DNA and RNA are nucleic acids; alongside proteins, lipids and complex carbohydrates (polysaccharides), they are one of the four major types of macromolecules that are essential for all known forms of life. Most DNA molecules consist of two biopolymer strands coiled around each other to form a double helix., Mackerel is a common name applied to a number of different species of pelagic fish, mostly, but not exclusively, from the family Scombridae. They are found in both temperate and tropical seas, mostly living along the coast or offshore in the oceanic environment.
Mackerel typically have vertical stripes on their backs and deeply forked tails. Many species are restricted in their distribution ranges, and live in separate populations or fish stocks based on geography. Some stocks migrate in large schools along the coast to suitable spawning grounds, where they spawn in fairly shallow waters. After spawning they return the way they came, in smaller schools, to suitable feeding grounds often near an area of upwelling. From there they may move offshore into deeper waters and spend the winter in relative inactivity. Other stocks migrate across oceans., The bullet tuna, "Auxis rochei rochei", is a subspecies of tuna, in the family Scombridae, found circumglobally in tropical oceans in open surface waters to depths of 50 m (164 ft). Its maximum length is 50.0 cm.(20 inches), Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma). A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide). A gas mixture would contain a variety of pure gases much like the air. What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles. This separation usually makes a colorless gas invisible to the human observer. The interaction of gas particles in the presence of electric and gravitational fields are considered negligible as indicated by the constant velocity vectors in the image. One type of commonly known gas is steam., Thunnus is a genus of ocean-dwelling ray-finned bony fish from the Scombridae (Mackerel) family. More specifically, "Thunnus" is one of five genera which make up the Thunnini tribe  a tribe that is collectively known as the tunas. Also called the true tunas or real tunas, "Thunnus" consists of eight species of tuna (more than half of the overall tribe), divided into two subgenera.
The word "" is the Middle Latin form of the  which is in turn derived from , "to rush; to dart". The first written use of the word was by Homer., An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt) from which groundwater can be extracted using a water well. The study of water flow in aquifers and the characterization of aquifers is called hydrogeology. Related terms include aquitard, which is a bed of low permeability along an aquifer, and aquiclude (or "aquifuge"), which is a solid, impermeable area underlying or overlying an aquifer. If the impermeable area overlies the aquifer, pressure could cause it to become a confined aquifer., The superclass Tetrapoda (Ancient Greek s tetrapods, "four-footed"), or the tetrapods , comprises the first four-limbed vertebrates and their descendants, including the living and extinct amphibians, birds, mammals, reptiles and some ancient, exclusively aquatic creatures such as the Acanthostega. Tetrapods evolved from the lobe-finned fishes around 390 million years ago in the middle Devonian Period, with modern tetrapod groups having appeared by the late Devonian, 367.5 million years ago. The specific aquatic ancestors of the tetrapods, and the process by which land colonization occurred, remain unclear, and are areas of active research and debate among palaeontologists at present., A tunicate is a marine invertebrate animal, a member of the subphylum Tunicata, which is part of the Chordata, a phylum which includes all animals with dorsal nerve cords and notochords. The subphylum was at one time called Urochordata, and the term urochordates is still sometimes used for these animals. Some tunicates live as solitary individuals, but others replicate by budding and become colonies, each unit being known as a zooid. They are marine filter feeders with a water-filled, sac-like body structure and two tubular openings, known as siphons, through which they draw in and expel water. During their respiration and feeding, they take in water through the incurrent (or inhalant) siphon and expel the filtered water through the excurrent (or exhalant) siphon. Most adult tunicates are sessile, and are permanently attached to rocks or other hard surfaces on the ocean floor; others, such as salps, doliolids and pyrosomes, swim in the pelagic zone of the sea as adults. Various species are commonly known as sea squirts, sea pork, sea livers, or sea tulips., Fog consists of visible cloud water droplets or ice crystals suspended in the air at or near the Earth's surface. Fog can be considered a type of low-lying cloud and is heavily influenced by nearby bodies of water, topography, and wind conditions. In turn, fog has affected many human activities, such as shipping, travel, and warfare., Lampreys (sometimes also called, inaccurately, lamprey eels) are any jawless fish of the order Petromyzontiformes, placed in the superclass Cyclostomata. The adult lamprey may be characterized by a toothed, funnel-like sucking mouth. The common name "lamprey" is probably derived from Latin "lampetra", which may mean "stone licker" ("lambere" "to lick" + "petra" "stone"), though the etymology is uncertain., A fish is any member of a group of organisms that consist of all gill-bearing aquatic craniate animals that lack limbs with digits. They form a sister group to the tunicates, together forming the olfactores. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Tetrapods emerged within lobe-finned fishes, so cladistically they are fish as well. However, traditionally fish are rendered obsolete or paraphyletic by excluding the tetrapods (i.e., the amphibians, reptiles, birds and mammals which all descended from within the same ancestry). Because in this manner the term "fish" is defined negatively as a paraphyletic group, it is not considered a formal taxonomic grouping in systematic biology. The traditional term pisces (also ichthyes) is considered a typological, but not a phylogenetic classification., Subject: tuna, Relation: parent_taxon, Options: (A) amniota (B) amphibia (C) animal (D) area (E) areas (F) auxis (G) craniata (H) electron (I) gasterochisma (J) hagfish (K) helix (L) hermit (M) human (N) lampetra (O) lissamphibia (P) melampus (Q) neon (R) olfactores (S) ostrich (T) petromyzontiformes (U) protium (V) reptile (W) sardini (X) sauropsida (Y) scombridae (Z) scombrinae ([) spanish mackerel (\) tetrapoda (]) theria (^) thunnini (_) thunnus (`) tunicate
scombrinae