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

There is evidence of induced copper deficiency in those taking 100–300 mg of zinc daily. A 2007 trial observed that elderly men taking 80 mg daily were hospitalized for urinary complications more often than those taking a placebo. The USDA RDA is 11 and 8 mg Zn/day for men and women, respectively. Levels of 100–300 mg may interfere with the utilization of copper and iron or adversely affect cholesterol. Levels of zinc in excess of 500 ppm in soil interfere with the ability of plants to absorb other essential metals, such as iron and manganese. There is also a condition called the zinc shakes or "zinc chills" that can be induced by the inhalation of freshly formed zinc oxide formed during the welding of galvanized materials. Zinc is a common ingredient of denture cream which may contain between 17 and 38 mg of zinc per gram. There have been claims of disability, and even death, due to excessive use of these products.

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Question: What kind of deficiency is common from taking 100-300mg of zinc daily?
Answer: copper.
Context: 

The earliest confirmed evidence of the Chinese script yet discovered is the body of inscriptions on oracle bones from the late Shang dynasty (c. 1200–1050 BC). These symbols, carved on pieces of bone and turtle shell being sold as "dragon bones" for medicinal purposes, were identified as Chinese writing by scholars in 1899. By 1928, the source of the oracle bones had been traced to a village near Anyang in Henan Province, which was excavated by the Academia Sinica between 1928 and 1937. Over 150,000 fragments have been found.

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Question: What was the earliest confirmed evidence of the Chinese script?
Answer: oracle bones.
Context: 

Under extreme compressive stresses and pressure, marine sedimentary rocks were uplifted, creating characteristic recumbent folds, or nappes, and thrust faults. As the rising peaks underwent erosion, a layer of marine flysch sediments was deposited in the foreland basin, and the sediments became involved in younger nappes (folds) as the orogeny progressed. Coarse sediments from the continual uplift and erosion were later deposited in foreland areas as molasse. The molasse regions in Switzerland and Bavaria were well-developed and saw further upthrusting of flysch.

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Question: What was uplifted from extreme compressive stresses and pressure? 
Answer: marine sedimentary rocks.
Context: 

To protect crops from wind and drought, the Grain Intendant Zhao Guo (趙過) created the alternating fields system (daitianfa 代田法) during Emperor Wu's reign. This system switched the positions of furrows and ridges between growing seasons. Once experiments with this system yielded successful results, the government officially sponsored it and encouraged peasants to use it. Han farmers also used the pit field system (aotian 凹田) for growing crops, which involved heavily fertilized pits that did not require plows or oxen and could be placed on sloping terrain. In southern and small parts of central Han-era China, paddy fields were chiefly used to grow rice, while farmers along the Huai River used transplantation methods of rice production.

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Question: What system did the government recommend the usage of?
Answer: alternating fields system.
Context: 

In its turn, under anaerobic conditions, the ferrous hydroxide (Fe(OH)
2 ) can be oxidized by the protons of water to form magnetite and molecular hydrogen. This process is described by the Schikorr reaction:

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Question: What reaction describes this process?
Answer: Schikorr reaction.
Context: 

In summer of 1986, Queen went on their final tour with Freddie Mercury. A sold-out tour in support of A Kind of Magic, once again they hired Spike Edney, leading to him being dubbed the unofficial fifth member. The Magic Tour's highlight was at Wembley Stadium in London and resulted in the live double album, Queen at Wembley, released on CD and as a live concert DVD, which has gone five times platinum in the US and four times platinum in the UK. Queen could not book Wembley for a third night, but they did play at Knebworth Park. The show sold out within two hours and over 120,000 fans packed the park for what was Queen's final live performance with Mercury. Queen began the tour at the Råsunda Stadium in Stockholm, Sweden, and during the tour the band performed a concert at Slane Castle, Ireland, in front of an audience of 95,000, which broke the venue's attendance record. The band also played behind the Iron Curtain when they performed to a crowd of 80,000 at the Népstadion in Budapest, in what was one of the biggest rock concerts ever held in Eastern Europe. More than one million people saw Queen on the tour—400,000 in the United Kingdom alone, a record at the time.

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Question: What was the name of Queen's final tour with Freddie Mercury?
Answer: A Kind of Magic.
Context: 

Most breeds of dog are at most a few hundred years old, having been artificially selected for particular morphologies and behaviors by people for specific functional roles. Through this selective breeding, the dog has developed into hundreds of varied breeds, and shows more behavioral and morphological variation than any other land mammal. For example, height measured to the withers ranges from 15.2 centimetres (6.0 in) in the Chihuahua to about 76 cm (30 in) in the Irish Wolfhound; color varies from white through grays (usually called "blue") to black, and browns from light (tan) to dark ("red" or "chocolate") in a wide variation of patterns; coats can be short or long, coarse-haired to wool-like, straight, curly, or smooth. It is common for most breeds to shed this coat.

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Question: How old are most dog breeds?
Answer: a few hundred years old.
Context: 

Page ii contains quotations by William Whewell and Francis Bacon on the theology of natural laws, harmonising science and religion in accordance with Isaac Newton's belief in a rational God who established a law-abiding cosmos. In the second edition, Darwin added an epigraph from Joseph Butler affirming that God could work through scientific laws as much as through miracles, in a nod to the religious concerns of his oldest friends. The Introduction establishes Darwin's credentials as a naturalist and author, then refers to John Herschel's letter suggesting that the origin of species "would be found to be a natural in contradistinction to a miraculous process":

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Question: What was Isaac Newton's belief about God  on the theory of natural law?
Answer: a rational God who established a law-abiding cosmos.
Context: 

Ibn Sina's first appointment was that of physician to the emir, Nuh II, who owed him his recovery from a dangerous illness (997). Ibn Sina's chief reward for this service was access to the royal library of the Samanids, well-known patrons of scholarship and scholars. When the library was destroyed by fire not long after, the enemies of Ibn Sina accused him of burning it, in order for ever to conceal the sources of his knowledge. Meanwhile, he assisted his father in his financial labors, but still found time to write some of his earliest works.

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Question: What year did the emir Null II recover from his illness?
Answer: 997.
Context: 

The Great Depression ended at different times in different countries with the effect lasting into the next era. America's Great Depression ended in 1941 with America's entry into World War II. The majority of countries set up relief programs, and most underwent some sort of political upheaval, pushing them to the left or right. In some world states, the desperate citizens turned toward nationalist demagogues—the most infamous being Adolf Hitler—setting the stage for the next era of war. The convulsion brought on by the worldwide depression resulted in the rise of Nazism. In Asia, Japan became an ever more assertive power, especially with regards to China.

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Question: Who was the most notable Nationalist Demagogue the people turned to? 
Answer: Adolf Hitler.
Context: 

Daylight saving has caused controversy since it began. Winston Churchill argued that it enlarges "the opportunities for the pursuit of health and happiness among the millions of people who live in this country" and pundits have dubbed it "Daylight Slaving Time". Historically, retailing, sports, and tourism interests have favored daylight saving, while agricultural and evening entertainment interests have opposed it, and its initial adoption had been prompted by energy crisis and war.

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Question: What nickname have people in opposition to DST given it?
Answer: Daylight Slaving Time.
Context: 

10th Street (40°44′03″N 74°00′11″W﻿ / ﻿40.7342580°N 74.0029670°W﻿ / 40.7342580; -74.0029670) begins at the FDR Drive and Avenue C. West of Sixth Avenue, it turns southward about 40 degrees to join the Greenwich Village street grid and continue to West Street on the Hudson River. Because West 4th Street turns northward at Sixth Avenue, it intersects 10th, 11th and 12th and 13th Streets in the West Village. The M8 bus operates on 10th Street in both directions between Avenue D and Avenue A, and eastbound between West Street and Sixth Avenue. 10th Street has an eastbound bike lane from West Street to the East River. In 2009, the two-way section of 10th Street between Avenue A and the East River had bicycle markings and sharrows installed, but it still has no dedicated bike lane. West 10th Street was previously named Amos Street for Richard Amos. The end of West 10th Street toward the Hudson River was once the home of Newgate Prison, New York City's first prison and the United States' second.

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Question: Which prison was New York City's first?
Answer: Newgate Prison.
Context: 

The word genocide was later included as a descriptive term to the process of indictment, but not yet as a formal legal term According to Lemming, genocide was defined as "a coordinated strategy to destroy a group of people, a process that could be accomplished through total annihilation as well as strategies that eliminate key elements of the group's basic existence, including language, culture, and economic infrastructure.” He created a concept of mobilizing much of the international relations and community, to working together and preventing the occurrence of such events happening within history and the international society. Australian anthropologist Peg LeVine coined the term "ritualcide" to describe the destruction of a group's cultural identity without necessarily destroying its members.

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Question: What term was coined to describe the destruction of culture?
Answer: ritualcide.
Context: 

The Partyja BPF (Belarusian Popular Front) was established in 1988 as a political party and cultural movement for democracy and independence, à la the Baltic republics’ popular fronts. The discovery of mass graves in Kurapaty outside Minsk by historian Zianon Pazniak, the Belarusian Popular Front’s first leader, gave additional momentum to the pro-democracy and pro-independence movement in Belarus. It claimed that the NKVD performed secret killings in Kurapaty. Initially the Front had significant visibility because its numerous public actions almost always ended in clashes with the police and the KGB.

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Question: Who found mass graves?
Answer: Zianon Pazniak.
Context: 

Infrared reflectography (fr; it; es), as called by art conservators, can be applied to paintings to reveal underlying layers in a completely non-destructive manner, in particular the underdrawing or outline drawn by the artist as a guide. This often reveals the artist's use of carbon black, which shows up well in reflectograms, as long as it has not also been used in the ground underlying the whole painting. Art conservators are looking to see whether the visible layers of paint differ from the underdrawing or layers in between – such alterations are called pentimenti when made by the original artist. This is very useful information in deciding whether a painting is the prime version by the original artist or a copy, and whether it has been altered by over-enthusiastic restoration work. In general, the more pentimenti the more likely a painting is to be the prime version. It also gives useful insights into working practices.

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Question: What technique is used in art to examine underlying layers of a painting without damaging it?
Answer: Infrared reflectography.
Context: 

Punjab's geography mostly consists of the alluvial plain of the Indus River and its four major tributaries in Pakistan, the Jhelum, Chenab, Ravi, and Sutlej rivers. There are several mountainous regions, including the Sulaiman Mountains in the southwest part of the province, and Margalla Hills, Salt Range, and Pothohar Plateau in the north. Agriculture is the chief source of income and employment in Punjab; wheat and cotton are the principal crops. Since independence, Punjab has become the seat of political and economic power; it remains the most industrialised province of Pakistan. It counts for 39.2% of large scale manufacturing and 70% of small scale manufacturing in the country. Its capital Lahore is a major regional cultural, historical, and economic centre.

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Question: What plain is Punjab in?
Answer: the alluvial plain of the Indus River.
Context: 

The Gorals of southern Poland and northern Slovakia are partially descended from Romance-speaking Vlachs who migrated into the region from the 14th to 17th centuries and were absorbed into the local population. The population of Moravian Wallachia also descend of this population.

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Question: Where did the Gorals reside?
Answer: southern Poland and northern Slovakia.
Context: 

Sometimes only partial compliance with license agreements is the cause. For example, in 2013, the US Army settled a lawsuit with Texas-based company Apptricity, which makes software that allows the army to track their soldiers in real time. In 2004, the US Army paid US$4.5 million for a license of 500 users, while allegedly installing the software for more than 9000 users; the case was settled for US$50 million. Major anti-piracy organizations, like the BSA, conduct software licensing audits regularly to ensure full compliance.

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Question: How much was the lawsuit settled for?
Answer: US$50 million.
Context: 

After the capitulation of Axis forces in North Africa, Eisenhower oversaw the highly successful invasion of Sicily. Once Mussolini, the Italian leader, had fallen in Italy, the Allies switched their attention to the mainland with Operation Avalanche. But while Eisenhower argued with President Roosevelt and British Prime Minister Churchill, who both insisted on unconditional terms of surrender in exchange for helping the Italians, the Germans pursued an aggressive buildup of forces in the country – making the job more difficult, by adding 19 divisions and initially outnumbering the Allied forces 2 to 1; nevertheless, the invasion of Italy was highly successful.

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Question: Until he was deposed, who was the leader of Italy?
Answer: Mussolini.
Context: 

The first session ended in a solemn ceremony on 8 December 1962 with the next session scheduled to occur in 1963 from 12 May to 29 June – this was announced on 12 November 1962. John XXIII's closing speech made subtle references to Pope Pius IX, and he had expressed the desire to see Pius IX beatified and eventually canonized. In his journal in 1959 during a spiritual retreat, John XXIII made this remark: "I always think of Pius IX of holy and glorious memory, and by imitating him in his sacrifices, I would like to be worthy to celebrate his canonization".

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Question: Who did John XXIII wish to see canonized?
Answer: Pope Pius IX.
Context: 

Early digital computers were electromechanical; electric switches drove mechanical relays to perform the calculation. These devices had a low operating speed and were eventually superseded by much faster all-electric computers, originally using vacuum tubes. The Z2, created by German engineer Konrad Zuse in 1939, was one of the earliest examples of an electromechanical relay computer.

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Question: Who created the relay computer, the Z2?
Answer: Konrad Zuse.
Context: 

The Interstate Highway System is officially known as the 'Dwight D. Eisenhower National System of Interstate and Defense Highways' in his honor. It was inspired in part by Eisenhower's own Army experiences in World War II, where he recognized the advantages of the autobahn systems in Germany, Austria, and Switzerland. Commemorative signs reading "Eisenhower Interstate System" and bearing Eisenhower's permanent 5-star rank insignia were introduced in 1993 and are currently displayed throughout the Interstate System. Several highways are also named for him, including the Eisenhower Expressway (Interstate 290) near Chicago and the Eisenhower Tunnel on Interstate 70 west of Denver.

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Question: What is another name for Eisenhower Expressway?
Answer: Interstate 290.
Context: 

The U.S. Army black beret (having been permanently replaced with the patrol cap) is no longer worn with the new ACU for garrison duty. After years of complaints that it wasn't suited well for most work conditions, Army Chief of Staff General Martin Dempsey eliminated it for wear with the ACU in June 2011. Soldiers still wear berets who are currently in a unit in jump status, whether the wearer is parachute-qualified, or not (maroon beret), Members of the 75th Ranger Regiment and the Airborne and Ranger Training Brigade (tan beret), and Special Forces (rifle green beret) and may wear it with the Army Service Uniform for non-ceremonial functions. Unit commanders may still direct the wear of patrol caps in these units in training environments or motor pools.

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Question: If a soldier is in a unit in jump status, what color beret do they wear?
Answer: maroon.
Context: 

Since the beginning of the study of electricity non conductive materials like glass, porcelain, paper and mica have been used as insulators. These materials some decades later were also well-suited for further use as the dielectric for the first capacitors. Paper capacitors made by sandwiching a strip of impregnated paper between strips of metal, and rolling the result into a cylinder were commonly used in the late 19century; their manufacture started in 1876, and they were used from the early 20th century as decoupling capacitors in telecommunications (telephony).

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Question: When were paper capacitors first manufactured?
Answer: in 1876.
Context: 

Major European rivers flow from Switzerland, such as the Rhine, the Rhone, the Inn, the Ticino and the Po, all of which have headwaters in the Alps and flow into neighbouring countries, finally emptying into the North Sea, the Mediterranean Sea, the Adriatic Sea and the Black Sea. Other rivers such as the Danube have major tributaries flowing into them that originate in the Alps. The Rhone is second to the Nile as a freshwater source to the Mediterranean Sea; the river begins as glacial meltwater, flows into Lake Geneva, and from there to France where one of its uses is to cool nuclear power plants. The Rhine originates in a 30 square kilometre area in Switzerland and represents almost 60 percent of water exported from the country. Tributary valleys, some of which are complicated, channel water to the main valleys which can experience flooding during the snow melt season when rapid runoff causes debris torrents and swollen rivers.

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Question: Where do the major tributaries that flow through the Danube originate from?
Answer: the Alps.
Context: 

where a single prime denotes the real part and a double prime the imaginary part, Z(ω) is the complex impedance with the dielectric present, Ccmplx(ω) is the so-called complex capacitance with the dielectric present, and C0 is the capacitance without the dielectric. (Measurement "without the dielectric" in principle means measurement in free space, an unattainable goal inasmuch as even the quantum vacuum is predicted to exhibit nonideal behavior, such as dichroism. For practical purposes, when measurement errors are taken into account, often a measurement in terrestrial vacuum, or simply a calculation of C0, is sufficiently accurate.)

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Question: Under what condition is the approximation C0 sufficiently accurate for calculation purposes?
Answer: in terrestrial vacuum.
Context: 

Egocentrism in adolescents forms a self-conscious desire to feel important in their peer groups and enjoy social acceptance. Unlike the conflicting aspects of self-concept, identity represents a coherent sense of self stable across circumstances and including past experiences and future goals. Everyone has a self-concept, whereas Erik Erikson argued that not everyone fully achieves identity. Erikson's theory of stages of development includes the identity crisis in which adolescents must explore different possibilities and integrate different parts of themselves before committing to their beliefs. He described the resolution of this process as a stage of "identity achievement" but also stressed that the identity challenge "is never fully resolved once and for all at one point in time". Adolescents begin by defining themselves based on their crowd membership. "Clothes help teens explore new identities, separate from parents, and bond with peers." Fashion has played a major role when it comes to teenagers "finding their selves"; Fashion is always evolving, which corresponds with the evolution of change in the personality of teenagers. Adolescents attempt to define their identity by consciously styling themselves in different manners to find what best suits them. Trial and error in matching both their perceived image and the image others respond to and see, allows for the adolescent to grasp an understanding of who they are Just as fashion is evolving to influence adolescents so is the media. "Modern life takes place amidst a never-ending barrage of flesh on screens, pages, and billboards." This barrage consciously or subconsciously registers into the mind causing issues with self-image a factor that contributes to an adolescence sense of identity. Researcher James Marcia developed the current method for testing an individual's progress along these stages. His questions are divided into three categories: occupation, ideology, and interpersonal relationships. Answers are scored based on extent to which the individual has explored and the degree to which he has made commitments. The result is classification of the individual into a) identity diffusion in which all children begin, b) Identity Foreclosure in which commitments are made without the exploration of alternatives, c) Moratorium, or the process of exploration, or d) Identity Achievement in which Moratorium has occurred and resulted in commitments.

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Question: Which researcher developed the current method for testing an individual's process along the stages of identity?
Answer: James Marcia.
Context: 

Similarities — in systems or even in ideas — that schools share internationally have led to an increase in international student exchanges. The European Socrates-Erasmus Program facilitates exchanges across European universities. The Soros Foundation provides many opportunities for students from central Asia and eastern Europe. Programs such as the International Baccalaureate have contributed to the internationalization of education. The global campus online, led by American universities, allows free access to class materials and lecture files recorded during the actual classes.

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Question: What has come from similarities in systems?
Answer: increase in international student exchanges.
Context: 

The Vedic period is named after the Indo-Aryan culture of north-west India, although other parts of India had a distinct cultural identity during this period. The Vedic culture is described in the texts of Vedas, still sacred to Hindus, which were orally composed in Vedic Sanskrit. The Vedas are some of the oldest extant texts in India. The Vedic period, lasting from about 1750 to 500 BCE, and contributed the foundations of several cultural aspects of Indian subcontinent. In terms of culture, many regions of the subcontinent transitioned from the Chalcolithic to the Iron Age in this period.

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Question: What sacred texts are some of the oldest in India?
Answer: The Vedas.