hotchpotch/wikipedia-multilingual-ir-related-lead-pairs huggingface dataset:
WR 30a
WR 30a is a massive spectroscopic binary in the Milky Way galaxy, in the constellation Carina.  The primary is an extremely rare star on the WO oxygen sequence and the secondary a massive class O star.  It appears near the Carina Nebula but is much further away.

Cerro Tololo Inter-American Observatory
The Cerro Tololo Inter-American Observatory (CTIO) is an astronomical observatory located on the summit of Mt. Cerro Tololo in the Coquimbo Region of northern Chile, with additional facilities located on Mt. Cerro Pachón about 10 kilometres (6.2 mi) to the southeast. It is approximately 80 kilometres (50 mi) east of La Serena, where support facilities are located. 
The principal telescopes at CTIO are the 4 m Víctor M. Blanco Telescope, named after Puerto Rican astronomer Víctor Manuel Blanco, and the 4.1 m Southern Astrophysical Research Telescope, which is situated on Cerro Pachón. Other telescopes on Cerro Tololo include the 1.5 m, 1.3 m, 1.0 m, and 0.9 m telescopes operated by the SMARTS consortium. CTIO also hosts other research projects, such as PROMPT, WHAM, and LCOGTN, providing a platform for access to the southern hemisphere for U.S. and worldwide scientific research.
Durbin and Greenbrier Valley Railroad
The Durbin and Greenbrier Valley Railroad (reporting mark DGVR) is a heritage and freight railroad in the U.S. states of Virginia and West Virginia. It operates the West Virginia State Rail Authority-owned Durbin Railroad and West Virginia Central Railroad (reporting mark WVC), as well as the Shenandoah Valley Railroad in Virginia.

Beginning in 2015, the DGVR began operating the historic geared steam-powered Cass Scenic Railroad, which was previously operated by the West Virginia Division of Natural Resources as part of Cass Scenic Railroad State Park.

West Virginia Division of Natural Resources
The West Virginia Division of Natural Resources (WVDNR) is an agency of the government of the U.S. state of West Virginia. While formerly known as the cabinet-level Department of Natural Resources, it is now part of the West Virginia Department of Commerce. The WVDNR is responsible for wildlife management, hunting and fishing regulations, and boater safety and also oversees state parks and resorts.  It also operates the West Virginia State Wildlife Center, a zoo in French Creek that exhibits West Virginian wildlife.
Miestodržiteľský palác
Miestodržiteľský palác (Vice Governor's palace in Bratislava) is an old and historically important building, located in Bratislava, the capital of Slovakia, in the Main Square, Old Town.

It was owned by the city of Bratislava until it was bought by the state in the 18th century for the purpose of housing The Vice Governor's Council. After World War II, the building was used by many institutions, until the Velvet Revolution in 1989.

Currently, it is owned by The Slovak Republic Government office and serves as one of many buildings used to host special events.

Old Town, Bratislava
The Old Town of Bratislava (Slovak: Staré Mesto, Hungarian: Óváros, German: Altstadt) is the historic center and one of the boroughs of Bratislava, in the Bratislava Region of Slovakia. It is coextensive with the smallest Slovak administrative district by area, Bratislava I. It contains the small, but preserved medieval city center, Bratislava Castle and other important landmarks. Bratislava's Old Town is known for its many churches, the Bratislava Riverfront and cultural institutions, it is also the location of most of the foreign states embassies and important Slovak institutions including the National Council of the Slovak Republic; the Summer Archbishop's Palace, seat of the Government of Slovakia; and Grassalkovich Palace, seat of the President of Slovakia.
Hefei Beicheng railway station
Hefei Beicheng railway station (Chinese: 合肥北城站; pinyin: Héféi Běichéng zhàn; lit. 'Hefei North City railway station') is a railway station in Hefei North City New Area, Changfeng County, Hefei, Anhui, China. The station is named after the Hefei North City New Area.

Line 8 of Hefei Metro is expected to stop here. The metro station is expected to open in 2024.

Changfeng County
Changfeng County  (simplified Chinese: 长丰县; traditional Chinese: 長豐縣; pinyin: Chángfēng Xiàn) is a county of Anhui Province, East China, it is under the administration of the prefecture-level city of Hefei, the capital of Anhui, and is also its northernmost county-level division. The county has a surface of 1,922.24 km2 (742.18 sq mi) and a population of 629,535 inhabitants. It contains 9 towns, 6 townships, and a development zone.

In 2014 Changfeng County offered 1,000 RMB in cash ($140) to each family who gave newborns the mothers' surname, in order improve the imbalanced sex ratio.
Angelabella
Angelabella tecomae is a moth of the family Gracillariidae and the only species in the genus Angelabella. It is known from Chile.

The larvae feed on Tecoma fulva. They mine the leaves of their host plant.

Tecoma fulva
Tecoma fulva is a species of flowering plant native to South America. In the past, several species have been named, which are more recently considered to be subspecies.

Tecoma fulva subsp. fulva

Tecoma fulva subsp. altoandina J. R. I. Wood

Tecoma fulva subsp. arequipensis (Sprague) J.R.I.Wood

Tecoma fulva subsp. garrocha (Hieron.) J.R.I.Wood

Tecoma fulva subsp. guarume (DC.) J.R.I.Wood

Tecoma fulva subsp. tanaeciiflora (Kraenzl.) J.R.I.Wood

subspecies arequipensis
Norwegian General Post Directorate
The Norwegian General Post Directorate (Norwegian: Generalpostdireksjonen) was a Norwegian government agency responsible for postal affairs. It was established in 1857 under the Norwegian Ministry of the Interior, itself non-existent today, and dissolved already in 1860 when its tasks were transferred to the Norwegian Ministry of Postal Affairs.

Its director from 1857 to 1860 was Niels Mathias Rye.

Government agencies in Norway
The Government agencies of Norway are state-controlled organizations that act independently to carry out the policies of the Government of Norway. The government ministries are relatively small and merely policy-making organizations, allowed to control agencies by policy decisions but not by direct orders. A minister is explicitly prohibited from interfering with the day-to-day operation in an agency or the outcome in individual cases. While no minister is allowed to give orders to agencies personally, they are subject to decisions made by the government. Also, the minister is normally the instance of appeals for agency decisions.

Agencies are organised as etater. Still, some of the work of the government is carried out through state enterprises or limited companies. For a full list of enterprises and companies, see List of Norwegian government enterprises.
Imamzadeh Ja'far, Isfahan
Imamzadeh Ja'far (Persian: امامزاده جعفر) is a Shi'ite imamzadeh in Isfahan, Iran. It is located opposite the Esmaeil religious complex. It is one of the pre-eminent structures of the Ilkhanid era. It is related that this emamzadeh is the grave of Ja'far ibn Abī Tālib, a companion of Mohammad. This structure was located formerly in the middle of a large yard, but it is now surrounded by residential buildings. The mausoleum is hexagonal and short and it seems that it had had a pyramid dome before, but its dome was destroyed and another dome like the dome of Chalabioghlou mausoleum in Soltaniyeh was built for it. This Emamzadeh is partly decorated by tiles.

Ja'far ibn Abi Talib
Jaʿfar ibn Abī Ṭālib (Arabic: جَعْفَر ٱبْن أَبِي طَالِب c. 590 – September 629), also known as Jaʿfar aṭ-Ṭayyār (Arabic: جَعْفَر ٱلطَّيَّار, lit. 'Ja'far the Flyer'), was a companion and cousin of the Islamic prophet Muhammad, and an elder brother of Ali.
Marijuana (1968 film)
Marijuana is a 34-minute 1968 anti-drug documentary film by Max Miller and distributed by Avanti Films. It is narrated by Sonny Bono. It was described as "the first major film effort to center upon the use and possible risks of marijuana", in which "arguments for and against its use are presented and the accumulation of arguments against is allowed to speak for itself". Music for the documentary was composed by the Byrds' Gene Clark, a "bizarre" choice in his musical career, resulting in "meandering blues and pseudo-psychedelic instrumental jams".

Gene Clark
Harold Eugene Clark (November 17, 1944 –  May 24, 1991) was an American singer-songwriter and founding member of the folk rock band the Byrds. He was the Byrds' principal songwriter between 1964 and early 1966, writing most of the band's best-known originals from this period, including "I'll Feel a Whole Lot Better", "She Don't Care About Time", "Eight Miles High" and "Set You Free This Time".

Although he did not enjoy commercial success as a solo artist, Clark was in the vanguard of popular music during much of his career, prefiguring developments in such disparate subgenres as psychedelic rock, baroque pop, newgrass, country rock, and alternative country. He was inducted into the Rock and Roll Hall of Fame in 1991 as a member of the Byrds.
2024 Indian general election in Bihar
The 2024 Indian general election was held in Bihar in all 7 phases from 19 April to 1 June to elect 40 members of the 18th Lok Sabha, with the results declared on 4 June.

Bihar, along with Uttar Pradesh and West Bengal, were the only states where the 2024 Indian general election was held in all 7 phases.

Tejashwi Yadav
Tejashwi Prasad Yadav (born 9 November 1989) is an Indian politician and former professional cricketer. He has previously served for two terms as the Deputy Chief Minister of Bihar and current leader of opposition in lower house. He is the youngest son of former Chief Ministers of Bihar Lalu Prasad Yadav and Rabri Devi.
WTOC-FM
WTOC-FM (95.7 FM) is a radio station broadcasting an adult contemporary music format. Licensed to Toccoa, Georgia, United States, the station is owned by Georgia-Carolina Radiocasting and the broadcast license is held by Sutton Radiocasting Corporation. WTOC-FM features programming from Westwood One.

Toccoa, Georgia
Toccoa is a city in and the county seat of Stephens County, Georgia, United States.  It lies in the state's far northeast near the border with South Carolina, about 50 miles (80 km) from Athens and about 90 miles (140 km) northeast of Atlanta. The population was 9,133 as of the 2020 census.
SN1CB mechanism
In coordination chemistry, the SN1cB (conjugate base) mechanism describes the pathway by which many metal amine complexes undergo substitution, that is, ligand exchange. Typically, the reaction entails reaction of a polyamino metal halide with aqueous base to give the corresponding polyamine metal hydroxide:

The rate law for the reaction is:

The rate law is deceptive: hydroxide serves not as a nucleophile but as a base to deprotonate the coordinated ammonia.  Simultaneously with deprotonation, the halide dissociates.  Water binds to the coordinatively unsaturated complex followed by proton transfer to give the hydroxy complex.  The conjugate base resulting from deprotonation of the amine is rarely observed.

Polyamine
A polyamine is an organic compound having three or more amino groups. Alkyl polyamines occur naturally, but some are synthetic. Alkylpolyamines are colorless, hygroscopic, and water soluble. Near neutral pH, they exist as the ammonium derivatives. Most aromatic polyamines are crystalline solids at room temperature.
2020–21 Davis Cup
The 2020–21 Davis Cup was the 109th edition of the Davis Cup, a tournament between national teams in men's tennis. It was sponsored by Rakuten. For this edition, the format of the cup was changed. The new format saw the creation of a Davis Cup World Group I and World Group II which was played on a worldwide basis and replaced the regional Group I and Group II. As a result, the Davis Cup nations ranking was no longer  used to determine which group a nation was played in. Previous the 2019, and the 2021 finals host Spain were the defending champions. Due to the COVID-19 pandemic, on 26 June 2020 the ITF announced that the 2020 finals would take place from 22 until 28 November 2021. In addition, 24 World Group I and World Group II ties were postponed to March and September 2021, and the 2020 regional Group III and Group IV events were also postponed to 2021. The 18 nations that qualified for the finals kept their standing for  the next year.

France Davis Cup team
The France men's national tennis team (French: Équipe de France de Coupe Davis) represents France in Davis Cup tennis competition, and is governed by the Fédération Française de Tennis.  France competed in their first Davis Cup in 1904. France is the third most successful nation, with ten wins.  Their most recent title came in 2017.
Bjørn Trumpy
Bjørn Trumpy (6 July 1900 – 8 June 1974) was a Norwegian physicist. He was born in Bergen. His research areas covered spectral physics, earth magnetism, cosmic radiation and nuclear physics. Trumpy was the first rector at the University of Bergen, from its establishment in 1948. He was decorated Commander of the Order of St. Olav in 1951.

He received his doctorate in 1927 from the Norwegian Institute of Technology. As a postdoc he studied in 1928 at the University of Göttingen under the supervision of Max Born and in 1929 at the University of Copenhagen under the supervision of Niels Bohr. Trumpy's doctoral students include Harald A. Enge.

Nuclear physics
Nuclear physics is the field of physics that studies atomic nuclei and their constituents and interactions, in addition to the study of other forms of nuclear matter.

Nuclear physics should not be confused with atomic physics, which studies the atom as a whole, including its electrons.

Discoveries in nuclear physics have led to applications in many fields such as nuclear power, nuclear weapons, nuclear medicine and magnetic resonance imaging, industrial and agricultural isotopes, ion implantation in materials engineering, and radiocarbon dating in geology and archaeology. Such applications are studied in the field of nuclear engineering.

Particle physics evolved out of nuclear physics and the two fields are typically taught in close association. Nuclear astrophysics, the application of nuclear physics to astrophysics, is crucial in explaining the inner workings of stars and the origin of the chemical elements.
Moana (2026 film)
Moana is an upcoming American musical adventure film that is a live-action adaptation of Disney Animation's 2016 film Moana, and the third installment in the Moana franchise. It is being directed by Thomas Kail in his feature directional debut from a screenplay by Jared Bush and Dana Ledoux Miller, and produced by Dwayne Johnson, Hiram and Dany Garcia, Beau Flynn, and songwriter Lin-Manuel Miranda. It stars Catherine Laga'aia in her film debut as Moana and Johnson reprising his role as Maui from the animated films.

Development of a live-action Moana film was announced by Johnson in April 2023. Kail was hired as director in May of the same year and Lagaʻaia was announced in the title role in June 2024, along with the main supporting cast. Principal photography occurred in Atlanta and Hawaii between July and November 2024.

Moana is scheduled to be released by Walt Disney Studios Motion Pictures in the United States on July 10, 2026.

Walt Disney Studios Motion Pictures
Walt Disney Studios Motion Pictures is an American film distributor within the Disney Entertainment division of the Walt Disney Company. It handles theatrical and occasional digital distribution, marketing, and promotion for films produced and released by the Walt Disney Studios, including Walt Disney Pictures, Walt Disney Animation Studios, Pixar, Marvel Studios, Lucasfilm, 20th Century Studios and Searchlight Pictures, though the latter unit operates its own autonomous theatrical distribution and marketing unit in the United States.

The company was originally established by Walt Disney in 1953 as Buena Vista Film Distribution Company Inc. (later renamed Buena Vista Distribution Inc. and Buena Vista Pictures Distribution Inc.). It took on its current name in late 2007.
Parish Church of Fátima
The Parish Church of Fátima, also known as Parish Church of Fátima and of the Little Shepherds or Mother Church of Fátima, is located in the civil parish of Fátima, municipality of Ourém, in the district of Santarém, province of Beira Litoral, Central region and Middle Tagus sub-region, in Portugal.

Médio Tejo
The Comunidade Intermunicipal do Médio Tejo (Portuguese pronunciation: [ˈmɛðju ˈtɛʒu]; English: Middle Tagus) is an administrative division in Portugal. It was created in December 2008, replacing the former Comunidade Urbana do Médio Tejo created in 2004. It takes its name from the river Tagus. Médio Tejo is also a NUTS 3 subregion of Oeste e Vale do Tejo, the NUTS 3 subregion has covered the same area as the intermunicipal community.

The seat of the intermunicipal community is Tomar. Médio Tejo comprises parts of the former districts of Santarém and Castelo Branco.

The population in 2011 was 247,331, in an area of 3,344.31 square kilometres (1,291.25 sq mi).
History of algebra
Algebra can essentially be considered as doing computations similar to those of arithmetic but with non-numerical mathematical objects. However, until the 19th century, algebra consisted essentially of the theory of equations. For example, the fundamental theorem of algebra belongs to the theory of equations and is not, nowadays, considered as belonging to algebra (in fact, every proof must use the completeness of the real numbers, which is not an algebraic property).

This article describes the history of the theory of equations, referred to in this article as "algebra", from the origins to the emergence of algebra as a separate area of mathematics.

Fundamental theorem of algebra
The fundamental theorem of algebra, also called d'Alembert's theorem or the d'Alembert–Gauss theorem, states that every non-constant single-variable polynomial with complex coefficients has at least one complex root. This includes polynomials with real coefficients, since every real number is a complex number with its imaginary part equal to zero.

Equivalently (by definition), the theorem states that the field of complex numbers is algebraically closed.

The theorem is also stated as follows: every non-zero, single-variable, degree n polynomial with complex coefficients has, counted with multiplicity, exactly n complex roots. The equivalence of the two statements can be proven through the use of successive polynomial division.

Despite its name, it is not fundamental for modern algebra; it was named when algebra was synonymous with the theory of equations. Additionally, the theorem cannot be proven in Algebra;  higher-level mathematics is required to prove the theorem.
Postage stamps and postal history of Australia
Australia's postal system entered a unified phase of development following the federation in 1901. The previously independent postal services of the six colonies came under the control of the federal government, marking the beginning of a nationalised postal network.

Basic designs of Australian postage stamps have evolved gradually in response to historical, political and social changes in Australia. In 1913, the first stamp bearing the name “Australia” featured the iconic “Kangaroo and Map” design was issued, demonstrated the formation of a national postal identity.

Territory of Papua and New Guinea
The Territory of Papua and New Guinea was established by an administrative union between the Australian-administered territories of Papua and New Guinea (the latter being a United Nations trust territory administered by Australia) in 1949. In December 1971, the name of the Territory changed to "Papua New Guinea" and in 1975 it became the Independent State of Papua New Guinea.
Swimming at the 1971 Pan American Games – Men's 400 metre individual medley
The men's 400 metre individual medley competition of the swimming events at the 1971 Pan American Games took place on 7 August. The last Pan American Games champion was William Utley of US.

This race consisted of eight lengths of the pool. The first two lengths were swum using the butterfly stroke, the second pair with the backstroke, the third pair of lengths in breaststroke, and the final two were freestyle.

Backstroke
Backstroke or back crawl is one of the four swimming styles used in competitive events regulated by FINA, and the only one of these styles swum on the back. This swimming style has the advantage of easy breathing, but the disadvantage of swimmers not being able to see where they are going. It also has a different start from the other three competition swimming styles. The swimming style is similar to an upside down front crawl or freestyle. Both backstroke and front crawl are long-axis strokes. In individual medley backstroke is the second style swum; in the medley relay it is the first style swum.
2018 Stock Car Brasil Championship
The 2018 Stock Car Brasil Championship was the fortieth season of the Stock Car Brasil. The season started on 10 March in Interlagos Circuit, and ended at the same circuit on 9 December. Daniel Serra of RC Competições won his second championship, with Felipe Fraga finishing runner up.

Daniel Serra
Daniel Gardano Serra (born 24 February 1984) is a Brazilian auto racing driver. He competes full-time in the Brazilian Stock Car Pro Series, driving the No. 29 Chevrolet Cruze for Eurofarma-RC and is also a Ferrari Factory Driver.

Serra won the Stock Car Brasil series three times (2017, 2018 and 2019). He is a two time 24 Hours of Le Mans GTE Pro class winner, having won in 2017 with Darren Turner and Jonathan Adam, while driving for Aston Martin Racing, and again in 2019, with James Calado and Alessandro Pier Guidi, driving for AF Corse.
2016 China International Suzhou
The 2016 China International Suzhou is a professional tennis tournament played on hard courts. It is the second edition of the tournament, which is part of the 2016 ATP Challenger Tour. It takes place in Suzhou, China from October 24 to October 30, 2016.

China International Suzhou
The China International Suzhou is a professional tennis tournament played on outdoor hardcourts. It is part of the ATP Challenger Tour. It is held annually in Suzhou, China, from 2015 until 2017 and starting again in 2025 when it came back on the Challenger Tour.
2017 Campeonato Amazonense
The 2017 Campeonato Amazonense is the 101st season of Amazonas' top football league. Nacional-AM and Rio Negro-AM were deducted 20 and 7 points, respectively, but this was later overruled.
Manaus won for the first time after defeating Nacional-AM 2–1 on aggregate.

2018 Campeonato Brasileiro Série D
The 2018 Campeonato Brasileiro Série D was a football competition held in Brazil, equivalent to the fourth division. The competition started on 21 April and ended on 4 August 2018.

Sixty-eight teams competed in the tournament. Sixty-four teams qualified from their state leagues and cups, and four relegated from the 2017 Campeonato Brasileiro Série C (ASA, Macaé, Mogi Mirim and Moto Club).

Ferroviário, Imperatriz, São José and Treze qualified for the semi-finals and were promoted to the 2019 Campeonato Brasileiro Série C.

Ferroviário won the title after defeating Treze in the final.