entrigna/custom-qa-v2-train-ds huggingface dataset:
Context: 

Yale's museum collections are also of international stature. The Yale University Art Gallery, the country's first university-affiliated art museum, contains more than 180,000 works, including Old Masters and important collections of modern art, in the Swartout and Kahn buildings. The latter, Louis Kahn's first large-scale American work (1953), was renovated and reopened in December 2006. The Yale Center for British Art, the largest collection of British art outside of the UK, grew from a gift of Paul Mellon and is housed in another Kahn-designed building.

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Question: How many items are in The Yale University Art Gallery?
Answer: more than 180,000.
Context: 

The "Rheinische" Carnival is held in the west of Germany, mainly in the states of North Rhine-Westphalia or Nordrhein-Westfalen, Rhineland Palatinate or Rheinland-Pfalz, but also in Hessen [including Oberhessen], Bavaria and other states. Some cities are more famous for celebrations such as parades and costume balls. Köln or Cologne Carnival, as well as Mainz and Düsseldorf are the largest and most famous. Other cities have their own, often less well-known celebrations, parades and parties such as Worms am Rhein, Speyer, Kaiserslautern, Frankfurt, Darmstadt, Mannheim, Ludwigshafen, Stuttgart, Augsburg and München [Munich] Nürnberg. On Carnival Thursday (called "Old Women Day" or "The Women's Day") in commemoration of an 1824 revolt by washer-women, women storm city halls, cut men's ties, and are allowed to kiss any passing man.

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Question: What is colloquially known as Old Women Day?
Answer: Nürnberg. On Carnival Thursday.
Context: 

Natural uranium consists of three major isotopes: uranium-238 (99.28% natural abundance), uranium-235 (0.71%), and uranium-234 (0.0054%). All three are radioactive, emitting alpha particles, with the exception that all three of these isotopes have small probabilities of undergoing spontaneous fission, rather than alpha emission. There are also five other trace isotopes: uranium-239, which is formed when 238U undergoes spontaneous fission, releasing neutrons that are captured by another 238U atom; uranium-237, which is formed when 238U captures a neutron but emits two more, which then decays to neptunium-237; uranium-233, which is formed in the decay chain of that neptunium-237; and finally, uranium-236 and -240, which appear in the decay chain of primordial plutonium-244. It is also expected that thorium-232 should be able to undergo double beta decay, which would produce uranium-232, but this has not yet been observed experimentally.

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Question: What isotope is it theorized will form uranium-2343 after double beta decay?
Answer: thorium-232.
Context: 

South Slavic dialects historically formed a continuum. The turbulent history of the area, particularly due to expansion of the Ottoman Empire, resulted in a patchwork of dialectal and religious differences. Due to population migrations, Shtokavian became the most widespread in the western Balkans, intruding westwards into the area previously occupied by Chakavian and Kajkavian (which further blend into Slovenian in the northwest). Bosniaks, Croats and Serbs differ in religion and were historically often part of different cultural circles, although a large part of the nations have lived side by side under foreign overlords. During that period, the language was referred to under a variety of names, such as "Slavic", "Illyrian", or according to region, "Bosnian", "Serbian" and "Croatian", the latter often in combination with "Slavonian" or "Dalmatian".

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Question: Why was Shtokavian the most widespread culture in the western Balkans? 
Answer: population migrations.
Context: 

Estonia is a parliamentary representative democratic republic in which the Prime Minister of Estonia is the head of government and which includes a multi-party system. The political culture is stable in Estonia, where power is held between two and three parties that have been in politics for a long time. This situation is similar to other countries in Northern Europe. The former Prime Minister of Estonia, Andrus Ansip, is also Europe's longest-serving Prime Minister (from 2005 until 2014). The current Estonian Prime Minister is Taavi Rõivas, who is the former Minister of Social Affairs and the head of the Estonian Reform Party.

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Question: Who is the leader of Estonia's government?
Answer: the Prime Minister of Estonia.
Context: 

The thermionic triode, a vacuum tube invented in 1907, enabled amplified radio technology and long-distance telephony. The triode, however, was a fragile device that consumed a lot of power. Physicist Julius Edgar Lilienfeld filed a patent for a field-effect transistor (FET) in Canada in 1925, which was intended to be a solid-state replacement for the triode. Lilienfeld also filed identical patents in the United States in 1926 and 1928. However, Lilienfeld did not publish any research articles about his devices nor did his patents cite any specific examples of a working prototype. Because the production of high-quality semiconductor materials was still decades away, Lilienfeld's solid-state amplifier ideas would not have found practical use in the 1920s and 1930s, even if such a device had been built. In 1934, German inventor Oskar Heil patented a similar device.

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Question: What was the purpose of the thermionic triode?
Answer: amplified radio technology and long-distance telephony.
Context: 

The Hindu Shahis under Jayapala, is known for his struggles in defending his kingdom against the Ghaznavids in the modern-day eastern Afghanistan and Pakistan region. Jayapala saw a danger in the consolidation of the Ghaznavids and invaded their capital city of Ghazni both in the reign of Sebuktigin and in that of his son Mahmud, which initiated the Muslim Ghaznavid and Hindu Shahi struggles. Sebuk Tigin, however, defeated him, and he was forced to pay an indemnity. Jayapala defaulted on the payment and took to the battlefield once more. Jayapala however, lost control of the entire region between the Kabul Valley and Indus River.

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Question: What city did Jayapala invade at least twice?
Answer: Ghazni.
Context: 

Water splitting, in which water is decomposed into its component protons, electrons, and oxygen, occurs in the light reactions in all photosynthetic organisms. Some such organisms, including the alga Chlamydomonas reinhardtii and cyanobacteria, have evolved a second step in the dark reactions in which protons and electrons are reduced to form H2 gas by specialized hydrogenases in the chloroplast. Efforts have been undertaken to genetically modify cyanobacterial hydrogenases to efficiently synthesize H2 gas even in the presence of oxygen. Efforts have also been undertaken with genetically modified alga in a bioreactor.

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Question: What organisms can form H2 gas?
Answer: alga Chlamydomonas reinhardtii and cyanobacteria.
Context: 

The trip was intended to soften the strong isolationist tendencies among the North American public with regard to the developing tensions in Europe. Although the aim of the tour was mainly political, to shore up Atlantic support for the United Kingdom in any future war, the King and Queen were enthusiastically received by the public. The fear that George would be compared unfavourably to his predecessor, Edward VIII, was dispelled. They visited the 1939 New York World's Fair and stayed with President Franklin D. Roosevelt at the White House and at his private estate at Hyde Park, New York. A strong bond of friendship was forged between the King and Queen and the President during the tour, which had major significance in the relations between the United States and the United Kingdom through the ensuing war years.

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Question: Which fair was happening in New York in 1939?
Answer: 1939 New York World's Fair.
Context: 

Now with NATO support in the form of air cover, the rebel militia pushed westward, defeating loyalist armies and securing control of the centre of the country. Gaining the support of Amazigh (Berber) communities of the Nafusa Mountains, who had long been persecuted as non-Arabic speakers under Gaddafi, the NTC armies surrounded Gaddafi loyalists in several key areas of western Libya. In August, the rebels seized Zliten and Tripoli, ending the last vestiges of Gaddafist power. On 25 August, the Arab League recognised the NTC to be "the legitimate representative of the Libyan state", on which basis Libya would resume its membership in the League.

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Question: What organization provided air support to the Libyan rebels?
Answer: NATO.
Context: 

To promote the film, production continued the trend established during Skyfall's production of releasing still images of clapperboards and video blogs on Eon's official social media accounts.

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Question: Images of what item were posted by Eon while the movie was being made?
Answer: clapperboards.
Context: 

The oak forests of the southern and central Appalachians consist largely of black, northern red, white, chestnut and scarlet oaks (Quercus velutina, Q. rubra, Q. alba, Q. prinus and Q. coccinea) and hickories, such as the pignut (Carya glabra) in particular. The richest forests, which grade into mesic types, usually in coves and on gentle slopes, have dominantly white and northern red oaks, while the driest sites are dominated by chestnut oak, or sometimes by scarlet or northern red oaks. In the northern Appalachians the oaks, except for white and northern red, drop out, while the latter extends farthest north.

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Question: What other tree is common there?
Answer: hickories.
Context: 

The country is a significant agricultural producer within the EU. Greece has the largest economy in the Balkans and is as an important regional investor. Greece was the largest foreign investor in Albania in 2013, the third in Bulgaria, in the top-three in Romania and Serbia and the most important trading partner and largest foreign investor in the former Yugoslav Republic of Macedonia. The Greek telecommunications company OTE has become a strong investor in former Yugoslavia and in other Balkan countries.

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Question: What Greek telecommunications company has become a strong investor in former Yugoslavia?
Answer: OTE.
Context: 

In September 2010, Beyoncé made her runway modelling debut at Tom Ford's Spring/Summer 2011 fashion show. She was named "World's Most Beautiful Woman" by People and the "Hottest Female Singer of All Time" by Complex in 2012. In January 2013, GQ placed her on its cover, featuring her atop its "100 Sexiest Women of the 21st Century" list. VH1 listed her at number 1 on its 100 Sexiest Artists list. Several wax figures of Beyoncé are found at Madame Tussauds Wax Museums in major cities around the world, including New York, Washington, D.C., Amsterdam, Bangkok, Hollywood and Sydney.

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Question: What TV network listed Beyonce as number 1 on its 100 Sexiest Artists list?
Answer: VH1.
Context: 

On 25 May 2011 the Swiss government announced that it plans to end its use of nuclear energy in the next 2 or 3 decades. "The government has voted for a phaseout because we want to ensure a secure and autonomous supply of energy", Energy Minister Doris Leuthard said that day at a press conference in Bern. "Fukushima showed that the risk of nuclear power is too high, which in turn has also increased the costs of this energy form." The first reactor would reportedly be taken offline in 2019 and the last one in 2034. Parliament will discuss the plan in June 2011, and there could be a referendum as well.

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Question: In 2011, what time frame did the Swiss government give for ending its use of nuclear energy?
Answer: 2 or 3 decades.
Context: 

Community Training Centres (CTCs) have been established within the primary schools on each atoll. The CTCs provide vocational training to students who do not progress beyond Class 8 because they failed the entry qualifications for secondary education. The CTCs offer training in basic carpentry, gardening and farming, sewing and cooking. At the end of their studies the graduates can apply to continue studies either at Motufoua Secondary School or the Tuvalu Maritime Training Institute (TMTI). Adults can also attend courses at the CTCs.

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Question: For what have CTC students failed to qualify ?
Answer: secondary education.
Context: 

The origins of al-Qaeda can be traced to the Soviet war in Afghanistan (December 1979 – February 1989). The United States, United Kingdom, Saudi Arabia, Pakistan, and the People's Republic of China supported the Islamist Afghan mujahadeen guerillas against the military forces of the Soviet Union and the Democratic Republic of Afghanistan. A small number of "Afghan Arab" volunteers joined the fight against the Soviets, including Osama bin Laden, but there is no evidence they received any external assistance. In May 1996 the group World Islamic Front for Jihad Against Jews and Crusaders (WIFJAJC), sponsored by bin Laden (and later re-formed as al-Qaeda), started forming a large base of operations in Afghanistan, where the Islamist extremist regime of the Taliban had seized power earlier in the year. In February 1998, Osama bin Laden signed a fatwā, as head of al-Qaeda, declaring war on the West and Israel, later in May of that same year al-Qaeda released a video declaring war on the U.S. and the West.

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Question: Which war gave birth to al-Qaeda?
Answer: the Soviet war in Afghanistan.
Context: 

According to FIG rules, only women compete in rhythmic gymnastics. This is a sport that combines elements of ballet, gymnastics, dance, and apparatus manipulation. The sport involves the performance of five separate routines with the use of five apparatus; ball, ribbon, hoop, clubs, rope—on a floor area, with a much greater emphasis on the aesthetic rather than the acrobatic. There are also group routines consisting of 5 gymnasts and 5 apparatuses of their choice. Rhythmic routines are scored out of a possible 30 points; the score for artistry (choreography and music) is averaged with the score for difficulty of the moves and then added to the score for execution.

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Question: What does rhythmic gymastics combine together?
Answer: ballet, gymnastics, dance, and apparatus manipulation.
Context: 

In 1989, during the "Singing Revolution", in a landmark demonstration for more independence, more than two million people formed a human chain stretching through Lithuania, Latvia and Estonia, called the Baltic Way. All three nations had similar experiences of occupation and similar aspirations for regaining independence. The Estonian Sovereignty Declaration was issued on 16 November 1988. On 20 August 1991, Estonia declared formal independence during the Soviet military coup attempt in Moscow, reconstituting the pre-1940 state. The Soviet Union recognised the independence of Estonia on 6 September 1991. The first country to diplomatically recognise Estonia's reclaimed independence was Iceland. The last units of the Russian army left on 31 August 1994.

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Question: What was the name of the human chain?
Answer: the Baltic Way.
Context: 

New York City's public bus fleet is the largest in North America, and the Port Authority Bus Terminal, the main intercity bus terminal of the city, serves 7,000 buses and 200,000 commuters daily, making it the busiest bus station in the world.

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Question: How many buses visit the Port Authority Bus Terminal each day?
Answer: 7,000.
Context: 

Three weeks later, on May 5, 1961, Alan Shepard became the first American in space, launched in a ballistic trajectory on Mercury-Redstone 3, in a spacecraft he named Freedom 7. Though he did not achieve orbit like Gagarin, he was the first person to exercise manual control over his spacecraft's attitude and retro-rocket firing. After his successful return, Shepard was celebrated as a national hero, honored with parades in Washington, New York and Los Angeles, and received the NASA Distinguished Service Medal from President John F. Kennedy.

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Question: Which president awarded Alan Shepard the NASA Distinguished Service Medal?
Answer: John F. Kennedy.
Context: 

Throughout the 19th century, Philadelphia had a variety of industries and businesses, the largest being textiles. Major corporations in the 19th and early 20th centuries included the Baldwin Locomotive Works, William Cramp and Sons Ship and Engine Building Company, and the Pennsylvania Railroad. Industry, along with the U.S. Centennial, was celebrated in 1876 with the Centennial Exposition, the first official World's Fair in the United States. Immigrants, mostly Irish and German, settled in Philadelphia and the surrounding districts. The rise in population of the surrounding districts helped lead to the Act of Consolidation of 1854, which extended the city limits of Philadelphia from the 2 square miles of present-day Center City to the roughly 130 square miles of Philadelphia County.

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Question: What is the size in square miles today?
Answer: 130 square miles.
Context: 

Rapid environmental changes typically cause mass extinctions. More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described. The total amount of related DNA base pairs on Earth is estimated at 5.0 x 1037, and weighs 50 billion tonnes. In comparison, the total mass of the biosphere has been estimated to be as much as 4 TtC (trillion tons of carbon).

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Question: What can typically cause mass extinctions?
Answer: Rapid environmental changes.
Context: 

Historically, the name Armenian has come to internationally designate this group of people. It was first used by neighbouring countries of ancient Armenia. The earliest attestations of the exonym Armenia date around the 6th century BC. In his trilingual Behistun Inscription dated to 517 BC, Darius I the Great of Persia refers to Urashtu (in Babylonian) as Armina (in Old Persian; Armina (    ) and Harminuya (in Elamite). In Greek, Αρμένιοι "Armenians" is attested from about the same time, perhaps the earliest reference being a fragment attributed to Hecataeus of Miletus (476 BC). Xenophon, a Greek general serving in some of the Persian expeditions, describes many aspects of Armenian village life and hospitality in around 401 BC. He relates that the people spoke a language that to his ear sounded like the language of the Persians.

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Question: Who described Armenian life in 401 BC?
Answer: Xenophon.
Context: 

Perspectives on emotions from evolutionary theory were initiated in the late 19th century with Charles Darwin's book The Expression of the Emotions in Man and Animals. Darwin argued that emotions actually served a purpose for humans, in communication and also in aiding their survival. Darwin, therefore, argued that emotions evolved via natural selection and therefore have universal cross-cultural counterparts. Darwin also detailed the virtues of experiencing emotions and the parallel experiences that occur in animals. This led the way for animal research on emotions and the eventual determination of the neural underpinnings of emotion.

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Question: In what century did Darwin write?
Answer: 19th.
Context: 

The Mughals were perhaps the richest single dynasty to have ever existed. During the Mughal era, the dominant political forces consisted of the Mughal Empire and its tributaries and, later on, the rising successor states – including the Maratha Empire – which fought an increasingly weak Mughal dynasty. The Mughals, while often employing brutal tactics to subjugate their empire, had a policy of integration with Indian culture, which is what made them successful where the short-lived Sultanates of Delhi had failed. This period marked vast social change in the subcontinent as the Hindu majority were ruled over by the Mughal emperors, most of whom showed religious tolerance, liberally patronising Hindu culture. The famous emperor Akbar, who was the grandson of Babar, tried to establish a good relationship with the Hindus. However, later emperors such as Aurangazeb tried to establish complete Muslim dominance, and as a result several historical temples were destroyed during this period and taxes imposed on non-Muslims. Akbar declared "Amari" or non-killing of animals in the holy days of Jainism. He rolled back the jizya tax for non-Muslims. The Mughal emperors married local royalty, allied themselves with local maharajas, and attempted to fuse their Turko-Persian culture with ancient Indian styles, creating a unique Indo-Saracenic architecture. It was the erosion of this tradition coupled with increased brutality and centralization that played a large part in the dynasty's downfall after Aurangzeb, who unlike previous emperors, imposed relatively non-pluralistic policies on the general population, which often inflamed the majority Hindu population.

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Question: What policy made the Mughals a successful dynasty? 
Answer: integration with Indian culture.
Context: 

A referendum was held in neighboring Djibouti (then known as French Somaliland) in 1958, on the eve of Somalia's independence in 1960, to decide whether or not to join the Somali Republic or to remain with France. The referendum turned out in favour of a continued association with France, largely due to a combined yes vote by the sizable Afar ethnic group and resident Europeans. There was also widespread vote rigging, with the French expelling thousands of Somalis before the referendum reached the polls. The majority of those who voted no were Somalis who were strongly in favour of joining a united Somalia, as had been proposed by Mahmoud Harbi, Vice President of the Government Council. Harbi was killed in a plane crash two years later. Djibouti finally gained its independence from France in 1977, and Hassan Gouled Aptidon, a Somali who had campaigned for a yes vote in the referendum of 1958, eventually wound up as Djibouti's first president (1977–1991).

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Question: Who was the first president of Djibouti?
Answer: Hassan Gouled Aptidon.
Context: 

On 17 April 1861, five days after the Confederate attack on Fort Sumter, the legislature voted to secede from the United States and joined the Confederacy. Official action came in May, after the Confederacy promised to move its national capital to Richmond. The city was at the end of a long supply line, which made it somewhat difficult to defend, although supplies continued to reach the city by canal and wagon for years, since it was protected by the Army of Northern Virginia and arguably the Confederacy's best troops and commanders. It became the main target of Union armies, especially in the campaigns of 1862 and 1864-5.

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Question: After leaving the Union, what nation did Virginia join?
Answer: Confederacy.
Context: 

Society throughout Europe was disturbed by the dislocations caused by the Black Death. Lands that had been marginally productive were abandoned, as the survivors were able to acquire more fertile areas. Although serfdom declined in Western Europe it became more common in Eastern Europe, as landlords imposed it on those of their tenants who had previously been free. Most peasants in Western Europe managed to change the work they had previously owed to their landlords into cash rents. The percentage of serfs amongst the peasantry declined from a high of 90 to closer to 50 per cent by the end of the period. Landlords also became more conscious of common interests with other landholders, and they joined together to extort privileges from their governments. Partly at the urging of landlords, governments attempted to legislate a return to the economic conditions that existed before the Black Death. Non-clergy became increasingly literate, and urban populations began to imitate the nobility's interest in chivalry.

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Question: What noble interest did city-dwellers start to mimic in this period?
Answer: chivalry.