hotchpotch/wikipedia-multilingual-ir-related-lead-pairs huggingface dataset:
Non-positive curvature
In mathematics, spaces of non-positive curvature occur in many contexts and form a generalization of hyperbolic geometry. In the category of Riemannian manifolds, one can consider the sectional curvature of the manifold and require that this curvature be everywhere less than or equal to zero. The notion of curvature extends to the category of geodesic metric spaces, where one can use comparison triangles to quantify the curvature of a space; in this context, non-positively curved spaces are known as (locally) CAT(0) spaces.

CAT(k) space
In mathematics, a  space, where  is a real number, is a specific type of metric space. Intuitively, triangles in a  space (with ) are "slimmer" than corresponding "model triangles" in a standard space of constant curvature . In a  space, the curvature is bounded from above by . A notable special case is ; complete  spaces are known as "Hadamard spaces" after the French mathematician Jacques Hadamard.

Originally, Aleksandrov called these spaces “ domains”.
The terminology  was coined by Mikhail Gromov in 1987 and is an acronym for Élie Cartan, Aleksandr Danilovich Aleksandrov and Victor Andreevich Toponogov (although Toponogov never explored curvature bounded above in publications).
Kakamega
Kakamega is a town in western Kenya lying about 30 km north of the Equator. It is the headquarters of Kakamega County that has a population of 1,867,579 (2019 census). The town has an urban population of 107,227 (2019 census).

Kakamega is 52 km north of Kisumu, and considered the heart of Luhya land. The average elevation of Kakamega is 1,535 metres.

The county has 12 constituencies in total, namely Butere, Mumias East, Mumias West, Matungu, Khwisero, Shinyalu, Lurambi, ikolomani, Lugari, Malava, Navakholo and Likuyani.

Kakamega County
Kakamega County is a county in the former Western Province of Kenya. It borders Vihiga County to the South, Siaya County to the West, Bungoma and Trans Nzoia counties to the North and Nandi, and Uasin Gishu counties to the East. Its capital and largest town is Kakamega town. The county has a population of 1,867,579, and an area of 3,033.8 km2.
Rotliegend
The Rotliegend, Rotliegend Group or Rotliegendes (German: the underlying red) is a lithostratigraphic unit (a sequence of rock strata) of latest Carboniferous to Guadalupian (middle Permian) age that is found in the subsurface of large areas in western and central Europe. The Rotliegend mainly consists of sandstone layers. It is usually covered by the Zechstein and lies on top of regionally different formations of late Carboniferous age.

The name Rotliegend has in the past not only been used to address the rock strata themselves, but also the time span in which they were formed (in which case the Rotliegend was considered a series or subsystem of the Permian). This time span corresponds roughly with the length of the Cisuralian epoch.

Zechstein
The Zechstein (German either from mine stone or tough stone) is a unit of sedimentary rock layers of Late Permian (Lopingian) age located in the European Permian Basin which stretches from the east coast of England to northern Poland. The name Zechstein was formerly also used as a unit of time in the geologic timescale, but nowadays it is only used for the corresponding sedimentary deposits in Europe.

The Zechstein lies on top of the Rotliegend; on top of the Zechstein is the Buntsandstein or Bunter. The Zechstein is associated with the accumulation of large amounts of salt rock between 257.3 and 251.0 million years ago.
Port of Philadelphia
The port of Philadelphia is located on the Delaware River in Philadelphia in the U.S. state of Pennsylvania.

Port of Philadelphia generally refers to the publicly owned marine terminals located within Philadelphia city limits along the west bank of the river. These terminals are managed by the Philadelphia Regional Port Authority, PhilaPort, an agency of the Commonwealth of Pennsylvania. The term is sometimes used for Delaware River port complex to collectively refer to the ports and energy facilities along the river in the tri-state PA-NJ-DE Delaware Valley region. They include the Port of Salem, the Port of Wilmington, the Port of Chester, the Port of Paulsboro, the Port of Philadelphia, and the Port of Camden. Combined they create one of the largest shipping areas of the United States. In 2016, 2,427 ships arrived at Delaware River port facilities: 577 fruit ships, 474 petroleum ships, and 431 containerized cargo ships.

Port of Camden
The Port of Camden is situated on east bank of the Delaware River in Camden and Gloucester City in southern New Jersey. It is one of several ports in the Delaware Valley metro area port complex and is located near the mouth of Newtown Creek opposite the Port of Philadelphia. The port is one of the nation's largest for wood products, steel, cocoa and perishable fruit.
Virginia State University
Virginia State University (VSU or Virginia State) is a public historically Black land-grant university in Ettrick, Virginia, United States. Founded on March 6, 1882 (1882-03-06), Virginia State developed as the United States's first fully state-supported four-year institution of higher learning for Black Americans. The university is a member school of the Thurgood Marshall College Fund.

Ettrick, Virginia
Ettrick is a census-designated place (CDP) in Chesterfield County, Virginia, United States. Per the 2020 census, the population was 7,241. The town is home to Virginia State University and the Petersburg Amtrak train station.

Most of Ettrick has a Petersburg mailing address, ZIP code 23803, although the community is not part of the city of Petersburg.
City of Birmingham Tramways Company
The City of Birmingham Tramways Company Ltd operated trams in Birmingham, England, from 1896 until 1911.

The company was formed on 29 September 1896 by James Ross (President and Vice-President of the Toronto and Montreal Street Railway Co. of Canada) and Sir William Mackenzie  to take over the business of the Birmingham Central Tramways Company Ltd.

The last routes in Birmingham closed on 31 December 1911. Most of its services were taken over by Birmingham Corporation Tramways.

Birmingham Corporation Tramways
Birmingham Corporation Tramways operated a network of tramways in Birmingham from 1904 until 1953. It was the largest narrow-gauge tramway network in the UK, and was built to a gauge of 3 ft 6 in (1,067 mm). It was the fourth largest tramway network in the UK behind London, Glasgow and Manchester.

There were a total of 843 trams (with a maximum of 825 in service at any one time), 20 depots, 45 main routes and a total route length of 80+1⁄2 miles (129.6 km).

Birmingham Corporation built all the tramways and leased the track to various companies.

Birmingham was a pioneer in the development of reserved trackways which served the suburban areas as the city grew in the 1920s and 1930s.
Cartoonito (Middle East and Africa)
Cartoonito is a Middle Eastern pay television children's channel broadcast in the Middle East, Greece, Cyprus, Turkey and North and Sub-Saharan Africa. It originally launched as a programming block on 12 October 2011, before it launched independent channel feeds on 1 July 2016, and replaced Boomerang in some markets in 2023. The channel is part of the Cartoonito brand owned by Warner Bros. Discovery and its EMEA arm.

Cartoonito
Cartoonito is a brand name used by Warner Bros. Discovery for a collection of television networks and programming blocks aimed at preschool children. The name combines the "cartoon" with the Spanish suffix "ito", meaning "small".

As of November 2025, Cartoonito exists as a TV channel across Europe (including the United Kingdom and Ireland, where it originated), the Middle East, Africa, Latin America, Southeast Asia, and South Korea; as a block on Cartoon Network in the US but it has no branding, and Cartoon Network in the UK w/branding, the Middle East, Turkey, Japan, the Philippines, Taiwan, South Asia, and New Zealand.
Hemolymph
Hemolymph or haemolymph is a body fluid that circulates inside arthropod bodies transporting nutrients and oxygen to tissues, comparable with the blood in vertebrates. It is composed of a plasma in which circulating immune cells called hemocytes are dispersed in addition to many plasma proteins (hemoproteins) and dissolved chemicals. It is the key component of the open circulatory system characteristic of arthropods such as insects, arachnids, myriapods and crustaceans. Some non-arthropod invertebrates such as molluscs and annelids also possess a similar hemolymphatic circulatory system.

In insects, the largest arthropod clade, the hemolymph mainly carries nutrients but not oxygen, which is supplied to the tissues separately by direct deep ventilation through an extensive tracheal system. In other arthropods, oxygen is dissolved into the hemolymph from gills, book lungs or across the cuticle and then distributed to the body tissues via the hemocoel.

Respiratory system of insects
An insect's respiratory system is the  system with which it introduces respiratory gases to its interior and performs gas exchange.

Air enters the respiratory systems of insects through a series of external openings called spiracles. These external openings, which act as muscular valves in some insects, lead to the internal respiratory system, a densely networked array of tubes called tracheae. This network of transverse and longitudinal tracheae equalizes pressure throughout the system.

It is responsible for delivering sufficient oxygen (O2) to all cells of the body and for removing carbon dioxide (CO2) that is produced as a waste product of cellular respiration. The respiratory system of insects (and many other arthropods) is separate from the circulatory system.
NOLA Express
NOLA Express is a publication started in 1967 in New Orleans by the young poets Darlene Fife and Robert Head. Part the underground free press movement of the 1960s, the paper was opposed to American imperialism, racism and materialism. It protested the Vietnam War and other government policies, along with social hypocrisies.

Named after William S. Burroughs's cut-up novel, Nova Express, the paper was produced by a dedicated band of activists, poets, and illustrators based in the French Quarter; it published uncensored news, art, and literature featuring Charles Bukowski, Hedwig Gorski, and many others.

NOLA Express is considered one of the most outrageous underground papers of the 1960s. Part of the controversy was due to the paper's inclusion of graphic images that many in Sixties society deemed pornographic. Such controversies increased readership and brought attention to the political causes that editors Fife and Head supported.

Underground press
The terms underground press or clandestine press refer to periodicals and publications that are produced without official approval, illegally or against the wishes of a dominant (governmental, religious, or institutional) group. 
In specific recent (post-World War II) Asian, American and Western European context, the term "underground press"  has most frequently been employed to refer to the independently published and distributed underground papers associated with the counterculture of the late 1960s and early 1970s in India and Bangladesh in Asia, in the United States and Canada in North America, and the United Kingdom and other western nations. It can also refer to the newspapers produced independently in repressive regimes. In German occupied Europe, for example, a thriving underground press operated, usually in association with the Resistance. Other notable examples include the samizdat and bibuła, which operated in the Soviet Union and Poland respectively, during the Cold War.
Anand Vihar Terminal railway station
Anand Vihar Terminal (station code: ANVT), a railway station under the Delhi Division of the Northern Railway zone of Indian Railways, is located in Anand Vihar in Delhi. Anand Vihar Terminal, along with Delhi Junction (Old Delhi), New Delhi, and Hazrat Nizamuddin, comprises one of the major long-distance railway terminals of Delhi. Spread over 42 hectares (100 acres), the terminal is one of the largest railway stations in Delhi, handling the vast majority of east-bound trains originating from Delhi to the states of UP, Bihar, West Bengal and beyond. The station also serves as a stop for Delhi Suburban Railway. The station is integrated with the Anand Vihar RRTS station of Delhi–Meerut Regional Rapid Transit System, Anand Vihar ISBT, and Anand Vihar metro station.

Delhi Junction railway station
Delhi Junction railway station (station code: DLI) is the oldest railway station located in Chandni Chowk, Old Delhi, Delhi, India. It is one of the busiest railway stations in the country, with around 250 trains commencing, terminating, or passing through it daily. Established in 1864, it originally served trains arriving from Calcutta.

The current station building, designed in the architectural style of the nearby Red Fort, was constructed by the imperial British government and opened in 1903. Preceding the New Delhi railway station by about 60 years, Delhi Junction has remained a significant hub in India’s railway network. The Chandni Chowk station of the Delhi Metro network is situated nearby, providing seamless connectivity to the city.
Aeolian Islands
The Aeolian Islands (/iːˈoʊliən/ ee-OH-lee-ən; Italian: Isole Eolie [ˈiːzole eˈɔːlje]; Sicilian: Ìsuli Eoli), sometimes referred to as the Lipari Islands or Lipari group (/ˈlɪpəri/ LIP-ər-ee, Italian: [ˈliːpari]) after their largest island, are a volcanic archipelago in the Tyrrhenian Sea north of Sicily, said to be named after Aeolus, the mythical ruler of the winds. The islands' inhabitants are known as Aeolians (Italian: Eoliani). The islands had a permanent population of 14,224 at the 2011 census; the latest official estimate is 15,419 as of 1 January 2019. The Aeolian Islands are a popular tourist destination in the summer and attract up to 600,000 visitors annually.

There are seven significant islands: Lipari, Vulcano, Salina, Stromboli, Filicudi, Alicudi and Panarea, and a set of minor islands and rocks.

Stromboli
Stromboli (/ˈstrɒmbəli/ STROM-bə-lee, Italian: [ˈstromboli]; Sicilian: Struògnuli [ˈʂː(ɽ)wɔɲɲʊlɪ]) is an island in the Tyrrhenian Sea, off the north coast of Sicily, containing Mount Stromboli, one of the four active volcanoes in Italy. It is one of the seven Aeolian Islands, a volcanic arc north of Sicily, and the mythological home of Aeolus.

The island, with an area of 12.6 square kilometres (4.9 sq mi), represents the upper third of the volcano. Its population was about 500 as of 2016. The volcano has erupted many times and is constantly active with minor eruptions, often visible from many points on the island and from the surrounding sea, giving rise to the island's nickname "Lighthouse of the Mediterranean".
Erebus
In Greek mythology, Erebus (/ˈɛrəbəs/; Ancient Greek: Ἔρεβος, romanized: Érebos, lit. 'darkness, gloom'), or Erebos, is the personification of darkness. In Hesiod's Theogony, he is the offspring of Chaos, and the father of Aether and Hemera (Day) by Nyx (Night); in other Greek cosmogonies, he is the father of Aether, Eros, and Metis, or the first ruler of the gods. In genealogies given by Roman authors, he begets a large progeny of personifications upon Nox (the Roman equivalent of Nyx), while in an Orphic theogony, he is the offspring of Chronos (Time).

The name "Erebus" is also used to refer either to the darkness of the underworld, the underworld itself, or the region through which souls pass to reach the underworld, and can sometimes be used as a synonym for Tartarus or Hades.

Hemera
In Greek mythology, Hemera (/ˈhɛmərə/; Ancient Greek: Ἡμέρα, romanized: Hēmérā, lit. 'Day' [hɛːméraː]) was the personification of day. According to Hesiod, she was the daughter of Erebus (Darkness) and Nyx (Night), and the sister of Aether. Though separate entities in Hesiod's Theogony, Hemera and Eos (Dawn) were often identified with each other.
Marshall County, Mississippi
Marshall County is a county located on the north central border of the U.S. state of Mississippi. As of the 2020 census, the population was 33,752. Its county seat is Holly Springs. The county is named for Chief Justice of the United States John Marshall, who presided in the early nineteenth century. Marshall County is part of the Memphis, TN-MS-AR Metropolitan Statistical Area.

Holly Springs, Mississippi
Holly Springs is a city in and the county seat of Marshall County, Mississippi, United States, near the border with Tennessee to the north. As of the 2020 census, the population was 6,968, down from 7,699 in 2010. Along with the Mississippi Delta, in the 19th century, the area was developed for cotton plantations. After the Civil War, many freedmen continued to work in agriculture as sharecroppers and tenant farmers.

As the county seat, Holly Springs is a center of trade and court sessions. The city has several National Register of Historic Places-listed properties and historic districts, including the Southwest Holly Springs Historic District, Holly Springs Courthouse Square Historic District, Depot-Compress Historic District, and East Holly Springs Historic District. Hillcrest Cemetery contains the graves of five Confederate generals and has been called "Little Arlington of the South".
Avatar: The Last Airbender (comics)
The Avatar: The Last Airbender comics are an official continuation of the original Nickelodeon animated television series, Avatar: The Last Airbender, created by Michael Dante DiMartino and Bryan Konietzko. The series includes The Lost Adventures, published from 2005 to 2011 and set between episodes of the original series, and the graphic novel trilogies, published since 2012 and set a few years after the original series. A related comic continuation, taking place seven decades later, The Legend of Korra, began publication in 2017.

The Legend of Korra (comics)
The Legend of Korra comics are a continuation of the Nickelodeon animated television series The Legend of Korra, created by Michael Dante DiMartino and Bryan Konietzko. It is set after the series finale, and follows  Avatar Korra and Asami Sato on their relationship. The comics are published by Dark Horse Comics, alongside Avatar: The Last Airbender.
Ledu (prince)
Ledu (勒度, 1636–1655) was a Qing dynasty imperial prince, Jirgalang's third son and grandson of Nurhaci's third younger brother Šurhaci. 
He was a sole holder of the Prince Min of the Second Rank title from 1651 to his death in 1655. As the peerage was not given perpetual inheritability, his descendants would have held diminished titles vis-a-vis their predecessors. The peerage became extinct because of lack of a male heir.

Jirgalang
Jirgalang or Jirhalang (Manchu: ᠵᡳᡵᡤᠠᠯᠠᠩ; 19 November 1599 – June 11, 1655) was a Manchu noble, regent, and political and military leader of the early Qing dynasty. Born in the Aisin Gioro clan, he was the sixth son of Šurhaci, a younger brother of Nurhaci, the founder of the Qing dynasty. From 1638 to 1643, he took part in many military campaigns that helped destroy the Ming dynasty. After the death of Huangtaiji (Nurhaci's successor) in September 1643, Jirgalang became one of the young Shunzhi Emperor's two co-regents, but he soon yielded most political power to co-regent Dorgon in October 1644. Dorgon eventually purged him of his regent title in 1647. After Dorgon died in 1650, Jirgalang led an effort to clean the government of Dorgon's supporters. Jirgalang was one of ten "princes of the first rank" (和碩親王) whose descendants were made "iron-cap" princes (鐵帽子王), who had the right to transmit their princely titles to their direct male descendants perpetually.
Oireachtas
The Oireachtas (/ˈɛrəktəs/ EH-rək-təs; Irish: [ˈɛɾʲaxt̪ˠəsˠ]), sometimes referred to as Oireachtas Éireann, is the bicameral parliament of Ireland. The Oireachtas consists of the president of Ireland and the two houses of the Oireachtas (Irish: Tithe an Oireachtais): a lower house called Dáil Éireann and an upper house called Seanad Éireann.

The houses of the Oireachtas sit in Leinster House in Dublin, an eighteenth-century ducal palace. The directly elected Dáil is the more powerful of the houses of the Oireachtas.

Seanad Éireann
53°20′26″N 6°15′14″W﻿ / ﻿53.34055°N 6.254021°W﻿ / 53.34055; -6.254021
Seanad Éireann (/ˈʃænəd ˈɛərən, ˈʃænəð/ ⓘ SHAN-əd(h) AIR-ən; Irish: [ˈʃan̪ˠəd̪ˠ ˈeːɾʲən̪ˠ]; "Senate of Ireland") is the upper house of the Oireachtas (the Irish legislature), which also comprises the President of Ireland and Dáil Éireann (the lower house).

It is commonly called the Seanad or Senate and its members are known as senators (Irish: seanadóirí, singular: seanadóir). Unlike Dáil Éireann, it is not directly elected but consists of a mixture of members chosen by various methods. Its powers are much weaker than those of the Dáil and it can only delay laws with which it disagrees, rather than veto them outright. It can introduce new legislation. Since its establishment, it has been located in Leinster House.
Gachedili Canyon Natural Monument
Gachedili Canyon Natural Monument (Georgian: მარტვილის კანიონი) also known as  Abasha Canyon Natural Monument (Georgian: აბაშის კანიონის ბუნების ძეგლი) and  Martvili Canyon (Georgian: მარტვილის კანიონი) is an Abasha river erosion canyon  located in Samegrelo region of Western Georgia in Martvili Municipality near Gachedili village, 240 meters above sea level. The water in the Abasha river has deep green color in the canyon. The Gachedili Canyon Natural Monument is located 6 km from the popular Balda Canyon Natural Monument. A canyon visitor center is located in the village Great Inchkhuri  on the northern outskirts of the Martvili.

Balda Canyon Natural Monument
Balda Canyon Natural Monument (Georgian: ბალდის კანიონი) is an Abasha gorge  located in Samegrelo region of Western Georgia in Martvili Municipality near village Second Balda and Balda Monastery of St. Mary's Assumption, 295 meters above sea level.
Canyon created by limestone rocks in the southern part of the Ashkah massif by the Abasha River. Baldi Canyon is 1400 m long, 5-10 m wide and 25-30 m deep.
Tian Yue
Tian Yue (Chinese: 田悅) (751 – March 26, 784), formally the Prince of Jiyang (濟陽王), was a Chinese military general, monarch, and politician who, from 782 to 784, claimed the title of Prince of Wei independent from the Tang regime.  Prior to that, he had already been ruling Weibo Circuit (魏博, headquartered in modern Handan, Hebei) in de facto independence from the Tang imperial government as its military governor (Jiedushi), having succeeded his uncle Tian Chengsi in 779.  In 784, his cousin Tian Xu — a son of Tian Chengsi's — assassinated him and succeeded him shortly after he had nominally resubmitted to Tang imperial authority.

Tian Chengsi
Tian Chengsi (705 – March 4, 779), noble title Prince of Yanmen, was a Chinese military general, monarch, and politician. He served as a military general in the Chinese Yan rebel state. who later submitted to and became a general of the Tang dynasty, from which Yan had rebelled.  As was in the case of several other Yan generals who submitted to Tang but who had substantial army and territorial holdings, Tian was allowed to retain his command and territory, semi-independent from the Tang imperial government structure, and among these generals, he was particularly defiant of the Tang imperial government.