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

Annelids with blood vessels use metanephridia to remove soluble waste products, while those without use protonephridia. Both of these systems use a two-stage filtration process, in which fluid and waste products are first extracted and these are filtered again to re-absorb any re-usable materials while dumping toxic and spent materials as urine. The difference is that protonephridia combine both filtration stages in the same organ, while metanephridia perform only the second filtration and rely on other mechanisms for the first – in annelids special filter cells in the walls of the blood vessels let fluids and other small molecules pass into the coelomic fluid, where it circulates to the metanephridia. In annelids the points at which fluid enters the protonephridia or metanephridia are on the forward side of a septum while the second-stage filter and the nephridiopore (exit opening in the body wall) are in the following segment. As a result, the hindmost segment (before the growth zone and pygidium) has no structure that extracts its wastes, as there is no following segment to filter and discharge them, while the first segment contains an extraction structure that passes wastes to the second, but does not contain the structures that re-filter and discharge urine.

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Question: What do metanephridia remove?
Answer: soluble waste products.
Context: 

For various reasons, the new firm operated as a dual-listed company, whereby the merging companies maintained their legal existence, but operated as a single-unit partnership for business purposes. The terms of the merger gave 60 percent ownership of the new group to the Dutch arm and 40 percent to the British. National patriotic sensibilities would not permit a full-scale merger or takeover of either of the two companies. The Dutch company, Koninklijke Nederlandsche Petroleum Maatschappij, was in charge at The Hague of production and manufacture. A British company was formed, called the Anglo-Saxon Petroleum Company, based in London, to direct the transport and storage of the products.

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Question: What prevented a full-scale merger of the two companies?
Answer: National patriotic sensibilities.
Context: 

The sky is usually clear above the desert and the sunshine duration is extremely high everywhere in the Sahara. Most of the desert enjoys more than 3,600 h of bright sunshine annually or over 82% of the time and a wide area in the eastern part experiences in excess of 4,000 h of bright sunshine a year or over 91% of the time, and the highest values are very close to the theoretical maximum value. A value of 4,300 h or 98% of the time would be recorded in Upper Egypt (Aswan, Luxor) and in the Nubian Desert (Wadi Halfa). The annual average direct solar irradiation is around 2,800 kWh/(m2 year) in the Great Desert. The Sahara h

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Question: What is the largest hottest continuously large area   worldwide?
Answer: the Great Desert.
Context: 

A novelty shop called Au Bon Marché had been founded in Paris in 1838 to sell lace, ribbons, sheets, mattresses, buttons, umbrellas and other assorted goods. It originally had four departments, twelve employees, and a floor space of three hundred meters. The entrepreneur Aristide Boucicaut became a partner in 1852, and changed the marketing plan, instituting fixed prices and guarantees that allowed exchanges and refunds, advertising, and a much wider variety of merchandise. The annual income of the store increased from 500,000 francs in 1852 to five million in 1860. In 1869 he built much larger building at 24 rue de Sèvres on the Left Bank, and enlarged the store again in 1872, with help from the engineering firm of Gustave Eiffel, creator of the Eiffel Tower. The income rose from twenty million francs in 1870 to 72 million at the time of the Boucicaut's death in 1877. The floor space had increased from three hundred square meters in 1838 to fifty thousand, and the number of employees had increased from twelve in 1838 to 1788 in 1879. Boucicaut was famous for his marketing innovations; a reading room for husbands while their wives shopped; extensive newspaper advertising; entertainment for children; and six million catalogs sent out to customers. By 1880 half the employees were women; unmarried women employees lived in dormitories on the upper floors.

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Question: What was Boucicaut most widely known for? 
Answer: marketing innovations.
Context: 

In the U.S. News & World Report's "America’s Best Colleges" 2016 issue, KU’s School of Engineering was ranked tied for 90th among national universities.

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Question: Who published America's Best Colleges in 2016?
Answer: U.S. News & World Report.
Context: 

Japanese (Famicom) cartridges are shaped slightly differently. While the NES used a 72-pin interface, the Famicom system used a 60-pin design. Unlike NES games, official Famicom cartridges were produced in many colors of plastic. Adapters, similar in design to the popular accessory Game Genie, are available that allow Famicom games to be played on an NES. In Japan, several companies manufactured the cartridges for the Famicom. This allowed these companies to develop their own customized chips designed for specific purposes, such as chips that increased the quality of sound in their games.

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Question: Which interface did Famicom use?
Answer: 60-pin.
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: Where did Lilienfeld file his patent?
Answer: Canada.
Context: 

Artspace on Orange Street is one of several contemporary art galleries around the city, showcasing the work of local, national, and international artists. Others include City Gallery and A. Leaf Gallery in the downtown area. Westville galleries include Kehler Liddell, Jennifer Jane Gallery, and The Hungry Eye. The Erector Square complex in the Fair Haven neighborhood houses the Parachute Factory gallery along with numerous artist studios, and the complex serves as an active destination during City-Wide Open Studios held yearly in October.

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Question: This gallery contains works of artist such as The Hungry Eye, what is name of the place?
Answer: Westville galleries.
Context: 

Chopin arrived in Paris in late September 1831; he would never return to Poland, thus becoming one of many expatriates of the Polish Great Emigration. In France he used the French versions of his given names, and after receiving French citizenship in 1835, he travelled on a French passport. However, Chopin remained close to his fellow Poles in exile as friends and confidants and he never felt fully comfortable speaking French. Chopin's biographer Adam Zamoyski writes that he never considered himself to be French, despite his father's French origins, and always saw himself as a Pole.

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Question: What biographer of Chopin wrote that Chopin never considered himself French?
Answer: Adam Zamoyski.
Context: 

On 10 October 2009, Armenia and Turkey signed protocols on normalisation of relationships, which set a timetable for restoring diplomatic ties and reopening their joint border. The ratification of those had to be made in the national parliaments. In Armenia it passed through the required by legislation approval of the Constitutional Court and was sent to the parliament for the final ratification. The President had made multiple public announcements, both in Armenia and abroad, that as the leader of the political majority of Armenia he assured the ratification of the protocols if Turkey also ratified them. Despite this, the process stopped, as Turkey continuously added more preconditions to its ratification and also "delayed it beyond any reasonable time-period".

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Question: When did Armenia and Turkey initiate an attempt to reopen their border?
Answer: 10 October 2009.
Context: 

In the context of trademarks, this expansion has been driven by international efforts to harmonise the definition of "trademark", as exemplified by the Agreement on Trade-Related Aspects of Intellectual Property Rights ratified in 1994, which formalized regulations for IP rights that had been handled by common law, or not at all, in member states. Pursuant to TRIPs, any sign which is "capable of distinguishing" the products or services of one business from the products or services of another business is capable of constituting a trademark.

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Question: What is any sign which is capable of distinguishing one business's product from another business's?
Answer: a trademark.
Context: 

With his health further deteriorating, Chopin desired to have a family member with him. In June 1849 his sister Ludwika came to Paris with her husband and daughter, and in September, supported by a loan from Jane Stirling, he took an apartment at Place Vendôme 12. After 15 October, when his condition took a marked turn for the worse, only a handful of his closest friends remained with him, although Viardot remarked sardonically that "all the grand Parisian ladies considered it de rigueur to faint in his room."

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Question: Who gave Chopin a loan in September for an apartment?
Answer: Jane Stirling.
Context: 

The development of quadraphonic records was announced in 1971. These recorded four separate sound signals. This was achieved on the two stereo channels by electronic matrixing, where the additional channels were combined into the main signal. When the records were played, phase-detection circuits in the amplifiers were able to decode the signals into four separate channels. There were two main systems of matrixed quadraphonic records produced, confusingly named SQ (by CBS) and QS (by Sansui). They proved commercially unsuccessful, but were an important precursor to later surround-sound systems, as seen in SACD and home cinema today.

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Question: What did quadraphonic recording feature?
Answer: recorded four separate sound signals..
Context: 

A large Russian assault on the allied supply base to the southeast, at Balaclava was rebuffed on 25 October 1854.:521–527 The Battle of Balaclava is remembered in the UK for the actions of two British units. At the start of the battle, a large body of Russian cavalry charged the 93rd Highlanders, who were posted north of the village of Kadikoi. Commanding them was Sir Colin Campbell. Rather than 'form square', the traditional method of repelling cavalry, Campbell took the risky decision to have his Highlanders form a single line, two men deep. Campbell had seen the effectiveness of the new Minie rifles, with which his troops were armed, at the Battle of the Alma a month before, and was confident his men could beat back the Russians. His tactics succeeded. From up on the ridge to the west, Times correspondent William Howard Russell saw the Highlanders as a 'thin red streak topped with steel', a phrase which soon became the 'Thin Red Line.'

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Question: Who did the Russians attack at the beginning off the Battle of Balaclava?
Answer: 93rd Highlanders.
Context: 

Bacteria were first observed by the Dutch microscopist Antonie van Leeuwenhoek in 1676, using a single-lens microscope of his own design. He then published his observations in a series of letters to the Royal Society of London. Bacteria were Leeuwenhoek's most remarkable microscopic discovery. They were just at the limit of what his simple lenses could make out and, in one of the most striking hiatuses in the history of science, no one else would see them again for over a century. Only then were his by-then-largely-forgotten observations of bacteria — as opposed to his famous "animalcules" (spermatozoa) — taken seriously.

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Question: How was he able to see bacteria?
Answer: using a single-lens microscope of his own design.
Context: 

In infrared photography, infrared filters are used to capture the near-infrared spectrum. Digital cameras often use infrared blockers. Cheaper digital cameras and camera phones have less effective filters and can "see" intense near-infrared, appearing as a bright purple-white color. This is especially pronounced when taking pictures of subjects near IR-bright areas (such as near a lamp), where the resulting infrared interference can wash out the image. There is also a technique called 'T-ray' imaging, which is imaging using far-infrared or terahertz radiation. Lack of bright sources can make terahertz photography more challenging than most other infrared imaging techniques. Recently T-ray imaging has been of considerable interest due to a number of new developments such as terahertz time-domain spectroscopy.

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Question: What is used in infrared photography to capture the near-infrared spectrum?
Answer: infrared filters.
Context: 

The Ministry of Defence and the Defence Forces have been working on a cyberwarfare and defence formation for some years now. In 2007, a military doctrine of an e-military of Estonia was officially introduced as the country was under massive cyberattacks in 2007. The proposed aim of the e-military is to secure the vital infrastructure and e-infrastructure of Estonia. The main cyber warfare facility is the Computer Emergency Response Team of Estonia (CERT), founded in 2006. The organisation operates on security issues in local networks.

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Question: Who have been jointly working on protection against cyberwarfare?
Answer: The Ministry of Defence and the Defence Forces.
Context: 

RIBA is based at 66 Portland Place, London—a 1930s Grade II* listed building designed by architect George Grey Wornum with sculptures by Edward Bainbridge Copnall and James Woodford. Parts of the London building are open to the public, including the Library. It has a large architectural bookshop, a café, restaurant and lecture theatres. Rooms are hired out for events.

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Question: What is the Royal Institute of British Architects' street address?
Answer: 66 Portland Place.
Context: 

American University economist George Ayittey accused the Arab government of Sudan of practicing acts of racism against black citizens. According to Ayittey, "In Sudan... the Arabs monopolized power and excluded blacks – Arab apartheid." Many African commentators joined Ayittey in accusing Sudan of practising Arab apartheid.

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Question: What is George Ayittey's profession? 
Answer: economist.
Context: 

The middle of summer is hot – in July and August on the coast the average temperature is usually around 33 °C (91 °F) during the day and around 22 °C (72 °F) at night (inland, in the highlands average temperature exceeds 35 °C (95 °F)) while in the June and September on the coast the average temperature is usually around 30 °C (86 °F) during the day and around 20 °C (68 °F) at night in Limassol, while is usually around 28 °C (82 °F) during the day and around 18 °C (64 °F) at night in Paphos. Large fluctuations in temperature are rare. Inland temperatures are more extreme, with colder winters and hotter summers compared with the coast of the island.

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Question: What is the average day temperature on the coast in June and September?
Answer: 30 °C (86 °F).
Context: 

In the 1950s, as a young woman at the start of her reign, Elizabeth was depicted as a glamorous "fairytale Queen". After the trauma of the Second World War, it was a time of hope, a period of progress and achievement heralding a "new Elizabethan age". Lord Altrincham's accusation in 1957 that her speeches sounded like those of a "priggish schoolgirl" was an extremely rare criticism. In the late 1960s, attempts to portray a more modern image of the monarchy were made in the television documentary Royal Family and by televising Prince Charles's investiture as Prince of Wales. In public, she took to wearing mostly solid-colour overcoats and decorative hats, which allow her to be seen easily in a crowd.

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Question: As what was Elizabeth portrayed in the 1950s?
Answer: "fairytale Queen".
Context: 

Energy sources unsuitable for mobile power plants, such as nuclear power, renewable hydroelectricity, or wind power can be used. According to widely accepted global energy reserve statistics, the reserves of liquid fuel are much less than gas and coal (at 42, 167 and 416 years respectively). Most countries with large rail networks do not have significant oil reserves and those that did, like the United States and Britain, have exhausted much of their reserves and have suffered declining oil output for decades. Therefore, there is also a strong economic incentive to substitute other fuels for oil. Rail electrification is often considered an important route towards consumption pattern reform. However, there are no reliable, peer-reviewed studies available to assist in rational public debate on this critical issue, although there are untranslated Soviet studies from the 1980s.

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Question: What research can be used in the future if translated?
Answer: Soviet studies from the 1980s.
Context: 

Two days after "1984" aired, the Macintosh went on sale, and came bundled with two applications designed to show off its interface: MacWrite and MacPaint. It was first demonstrated by Steve Jobs in the first of his famous Mac keynote speeches, and though the Mac garnered an immediate, enthusiastic following, some labeled it a mere "toy." Because the operating system was designed largely around the GUI, existing text-mode and command-driven applications had to be redesigned and the programming code rewritten. This was a time-consuming task that many software developers chose not to undertake, and could be regarded as a reason for an initial lack of software for the new system. In April 1984, Microsoft's MultiPlan migrated over from MS-DOS, with Microsoft Word following in January 1985. In 1985, Lotus Software introduced Lotus Jazz for the Macintosh platform after the success of Lotus 1-2-3 for the IBM PC, although it was largely a flop. Apple introduced the Macintosh Office suite the same year with the "Lemmings" ad. Infamous for insulting its own potential customers, the ad was not successful.

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Question: What two applications came bundled with Macs 2 days after "1984" was aired?
Answer: MacWrite and MacPaint.
Context: 

The artificial intelligence (AI) of enemies in Twilight Princess is more advanced than that of enemies in The Wind Waker. Enemies react to defeated companions and to arrows or slingshot pellets that pass by, and can detect Link from a greater distance than was possible in previous games.

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Question: Who can enemies detect from a greater distance than in previous games?
Answer: Link.
Context: 

Plymouth lies between the River Plym to the east and the River Tamar to the west; both rivers flow into the natural harbour of Plymouth Sound. Since 1967, the unitary authority of Plymouth has included the, once independent, towns of Plympton and Plymstock which lie along the east of the River Plym. The River Tamar forms the county boundary between Devon and Cornwall and its estuary forms the Hamoaze on which is sited Devonport Dockyard.

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Question: When did Plymstock join the unitary authority of Plymouth?
Answer: 1967.
Context: 

The National Conference of State Legislatures held in Washington D.C. stated in a 2014 overview that many supporters for affirmative action argue that policies stemming from affirmative action help to open doors for historically excluded groups in workplace settings and higher education. Workplace diversity has become a business management concept in which employers actively seek to promote an inclusive workplace. By valuing diversity, employers have the capacity to create an environment in which there is a culture of respect for individual differences as well as the ability to draw in talent and ideas from all segments of the population. By creating this diverse workforce, these employers and companies gain a competitive advantage in an increasingly global economy. According to the U.S. Equal Employment Opportunity Commission, many private sector employers have concluded that a diverse workforce makes a "company stronger, more profitable, and a better place to work." Therefore, these diversity promoting policies are implemented for competitive reasons rather than as a response to discrimination, but have shown the value in having diversity.

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Question: What did proponents of affirmative action claim some of the effects of policies that support affirmative action had done?
Answer: help to open doors for historically excluded groups in workplace settings and higher education.
Context: 

On 5 June 2008, Secretary of Defense Robert Gates, accepted the resignations of both the Secretary of the Air Force, Michael Wynne, and the Chief of Staff of the United States Air Force, General T. Michael Moseley. Gates in effect fired both men for "systemic issues associated with declining Air Force nuclear mission focus and performance." This followed an investigation into two embarrassing incidents involving mishandling of nuclear weapons: specifically a nuclear weapons incident aboard a B-52 flight between Minot AFB and Barksdale AFB, and an accidental shipment of nuclear weapons components to Taiwan. The resignations were also the culmination of disputes between the Air Force leadership, populated primarily by non-nuclear background fighter pilots, versus Gates. To put more emphasis on nuclear assets, the USAF established the nuclear-focused Air Force Global Strike Command on 24 October 2008.

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Question: What Secretary of the Air Force resigned in 2008?
Answer: Michael Wynne.
Context: 

This work has been pioneered by John B. Cobb, Jr., whose book Is It Too Late? A Theology of Ecology (1971) was the first single-authored book in environmental ethics. Cobb also co-authored a book with economist Herman Daly entitled For the Common Good: Redirecting the Economy toward Community, the Environment, and a Sustainable Future (1989), which applied Whitehead's thought to economics, and received the Grawemeyer Award for Ideas Improving World Order. Cobb followed this with a second book, Sustaining the Common Good: A Christian Perspective on the Global Economy (1994), which aimed to challenge "economists' zealous faith in the great god of growth."

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Question: What was the first book on environmental ethics by an individual author?
Answer: Is It Too Late? A Theology of Ecology.
Context: 

The history of the Greek people is closely associated with the history of Greece, Cyprus, Constantinople, Asia Minor and the Black Sea. During the Ottoman rule of Greece, a number of Greek enclaves around the Mediterranean were cut off from the core, notably in Southern Italy, the Caucasus, Syria and Egypt. By the early 20th century, over half of the overall Greek-speaking population was settled in Asia Minor (now Turkey), while later that century a huge wave of migration to the United States, Australia, Canada and elsewhere created the modern Greek diaspora.

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Question: After the 19th century about how much of the Greek population resided in little Asia ?
Answer: By the early 20th century, over half of the overall Greek-speaking population was settled in Asia Minor (now Turkey).