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

Many kinds of clothing are designed to be ironed before they are worn to remove wrinkles. Most modern formal and semi-formal clothing is in this category (for example, dress shirts and suits). Ironed clothes are believed to look clean, fresh, and neat. Much contemporary casual clothing is made of knit materials that do not readily wrinkle, and do not require ironing. Some clothing is permanent press, having been treated with a coating (such as polytetrafluoroethylene) that suppresses wrinkles and creates a smooth appearance without ironing.

---

Question: What material doesn't easily wrinkle?
Answer: knit.
Context: 

The Bronx underwent rapid urban growth after World War I. Extensions of the New York City Subway contributed to the increase in population as thousands of immigrants came to the Bronx, resulting in a major boom in residential construction. Among these groups, many Irish Americans, Italian Americans and especially Jewish Americans settled here. In addition, French, German, Polish and other immigrants moved into the borough. The Jewish population also increased notably during this time. In 1937, according to Jewish organizations, 592,185 Jews lived in The Bronx (43.9% of the borough's population), while only 54,000 Jews lived in the borough in 2011. Many synagogues still stand in the Bronx, but most have been converted to other uses.

---

Question: How much of the Bronx was Jewish in 1937?
Answer: 43.9%.
Context: 

During the summer months, it is common for temperatures to reach over 90 °F (32 °C), with an average of 106.5 days per year, including a majority from June to September, with a high of 90 °F or above and 4.6 days at or over 100 °F (38 °C). However, humidity usually yields a higher heat index. Summer mornings average over 90 percent relative humidity. Winds are often light in the summer and offer little relief, except in the far southeastern outskirts near the Gulf coast and Galveston. To cope with the strong humidity and heat, people use air conditioning in nearly every vehicle and building. In 1980, Houston was described as the "most air-conditioned place on earth". Officially, the hottest temperature ever recorded in Houston is 109 °F (43 °C), which was reached both on September 4, 2000 and August 28, 2011.

---

Question: How many days per year are Houston temperatures over 90 degrees?
Answer: 106.5.
Context: 

The Wayback Machine is a digital archive of the World Wide Web and other information on the Internet created by the Internet Archive, a nonprofit organization, based in San Francisco, California, United States. It was set up by Brewster Kahle and Bruce Gilliat, and is maintained with content from Alexa Internet. The service enables users to see archived versions of web pages across time, which the archive calls a "three dimensional index."

---

Question: What individuals founded Internet Archive?
Answer: Brewster Kahle and Bruce Gilliat.
Context: 

Political unification returned in the mid-16th century, due to the efforts of Taungoo, a former vassal state of Ava. Taungoo's young, ambitious king Tabinshwehti defeated the more powerful Hanthawaddy in the Toungoo–Hanthawaddy War (1534–41). His successor Bayinnaung went on to conquer a vast swath of mainland Southeast Asia including the Shan states, Lan Na, Manipur, Mong Mao, the Ayutthaya Kingdom, Lan Xang and southern Arakan. However, the largest empire in the history of Southeast Asia unravelled soon after Bayinnaung's death in 1581, completely collapsing by 1599. Ayutthaya seized Tenasserim and Lan Na, and Portuguese mercenaries established Portuguese rule at Thanlyin (Syriam).

---

Question: Who was the ruler of the largest kingdom in Southeast Asia ?
Answer: Bayinnaung.
Context: 

Shōen holders had access to manpower and, as they obtained improved military technology (such as new training methods, more powerful bows, armor, horses, and superior swords) and faced worsening local conditions in the ninth century, military service became part of shōen life. Not only the shōen but also civil and religious institutions formed private guard units to protect themselves. Gradually, the provincial upper class was transformed into a new military elite based on the ideals of the bushi (warrior) or samurai (literally, one who serves).

---

Question: Who had increased access to better military technology?
Answer: Shōen holders.
Context: 

After Laporta's departure from the club in June 2010, Sandro Rosell was soon elected as the new president. The elections were held on 13 June, where he got 61.35% (57,088 votes, a record) of total votes. Rosell signed David Villa from Valencia for €40 million and Javier Mascherano from Liverpool for €19 million. In November 2010, Barcelona defeated their main rival, Real Madrid 5–0 in El Clásico. In the 2010–11 season, Barcelona retained the La Liga trophy, their third title in succession, finishing with 96 points. In April 2011, the club reached the Copa del Rey final, losing 1–0 to Real Madrid at the Mestalla in Valencia. In May, Barcelona defeated Manchester United in the 2011 Champions League Final 3–1 held at Wembley Stadium, a repeat of the 2009 final, winning their fourth European Cup. In August 2011, La Masia graduate Cesc Fàbregas was bought from Arsenal and he would help Barcelona defend the Spanish Supercup against Real Madrid. The Supercup victory brought the total number of official trophies to 73, matching the number of titles won by Real Madrid.

---

Question: What team did Barcelona beat in El Clasico in 2010?
Answer: Real Madrid.
Context: 

In 1637 a small party of Puritans reconnoitered the New Haven harbor area and wintered over. In April 1638, the main party of five hundred Puritans who left the Massachusetts Bay Colony under the leadership of the Reverend John Davenport and the London merchant Theophilus Eaton sailed into the harbor. These settlers were hoping to establish a (in their mind) better theological community, with the government more closely linked to the church than the one they left in Massachusetts and sought to take advantage of the excellent port capabilities of the harbor. The Quinnipiacs, who were under attack by neighboring Pequots, sold their land to the settlers in return for protection.

---

Question: What group sold the land to the Puritans?
Answer: The Quinnipiacs.
Context: 

Forty of the city's theaters, with more than 500 seats each, are collectively known as Broadway, after the major thoroughfare that crosses the Times Square Theater District, sometimes referred to as "The Great White Way". According to The Broadway League, Broadway shows sold approximately US$1.27 billion worth of tickets in the 2013–2014 season, an 11.4% increase from US$1.139 billion in the 2012–2013 season. Attendance in 2013–2014 stood at 12.21 million, representing a 5.5% increase from the 2012–2013 season's 11.57 million.

---

Question: How many people attended Broadway shows during the 2013-2014 season?
Answer: 12.21 million.
Context: 

Protestants can be differentiated according to how they have been influenced by important movements since the Reformation, today regarded as branches. Some of these movements have a common lineage, sometimes directly spawning individual denominations. Due to the earlier stated multitude of denominations, this section discusses only the largest denominational families, or branches, widely considered to be a part of Protestantism. These are, in alphabetical order: Adventist, Anglican, Baptist, Calvinist (Reformed), Lutheran, Methodist and Pentecostal. A small but historically significant Anabaptist branch is also discussed.

---

Question: What do some branches share in common?
Answer: lineage.
Context: 

The first real progress toward a modern understanding of nervous function, though, came from the investigations of Luigi Galvani, who discovered that a shock of static electricity applied to an exposed nerve of a dead frog could cause its leg to contract. Since that time, each major advance in understanding has followed more or less directly from the development of a new technique of investigation. Until the early years of the 20th century, the most important advances were derived from new methods for staining cells. Particularly critical was the invention of the Golgi stain, which (when correctly used) stains only a small fraction of neurons, but stains them in their entirety, including cell body, dendrites, and axon. Without such a stain, brain tissue under a microscope appears as an impenetrable tangle of protoplasmic fibers, in which it is impossible to determine any structure. In the hands of Camillo Golgi, and especially of the Spanish neuroanatomist Santiago Ramón y Cajal, the new stain revealed hundreds of distinct types of neurons, each with its own unique dendritic structure and pattern of connectivity.

---

Question: Who found out that a shock of electricity to an exposed nerve of a dead frog caused contractions?
Answer: Luigi Galvani.
Context: 

The Downtown District is the home of the Third Street Promenade, a major outdoor pedestrian-only shopping district that stretches for three blocks between Wilshire Blvd. and Broadway (not the same Broadway in downtown and south Los Angeles). Third Street is closed to vehicles for those three blocks to allow people to stroll, congregate, shop and enjoy street performers. Santa Monica Place, featuring Bloomingdale's and Nordstrom in a three-level outdoor environment, is located at the south end of the Promenade. After a period of redevelopment, the mall reopened in the fall of 2010 as a modern shopping, entertainment and dining complex with more outdoor space.

---

Question: What two major department stores are located at the Third Street Promenade?
Answer: Bloomingdale's and Nordstrom.
Context: 

The Roman Empire expanded to include different peoples and cultures; in principle, Rome followed the same inclusionist policies that had recognised Latin, Etruscan and other Italian peoples, cults and deities as Roman. Those who acknowledged Rome's hegemony retained their own cult and religious calendars, independent of Roman religious law. Newly municipal Sabratha built a Capitolium near its existing temple to Liber Pater and Serapis. Autonomy and concord were official policy, but new foundations by Roman citizens or their Romanised allies were likely to follow Roman cultic models. Romanisation offered distinct political and practical advantages, especially to local elites. All the known effigies from the 2nd century AD forum at Cuicul are of emperors or Concordia. By the middle of the 1st century AD, Gaulish Vertault seems to have abandoned its native cultic sacrifice of horses and dogs in favour of a newly established, Romanised cult nearby: by the end of that century, Sabratha’s so-called tophet was no longer in use. Colonial and later Imperial provincial dedications to Rome's Capitoline Triad were a logical choice, not a centralised legal requirement. Major cult centres to "non-Roman" deities continued to prosper: notable examples include the magnificent Alexandrian Serapium, the temple of Aesculapeus at Pergamum and Apollo's sacred wood at Antioch.

---

Question: From what were countries in the empire free?
Answer: Roman religious law.
Context: 

At 36,125 square kilometres (13,948 sq mi), the country is larger in size than Taiwan or Belgium. It lies at a low altitude; its highest point is 300 metres (984 ft). The terrain of is mostly low coastal plain with swamps of Guinean mangroves rising to Guinean forest-savanna mosaic in the east. Its monsoon-like rainy season alternates with periods of hot, dry harmattan winds blowing from the Sahara. The Bijagos Archipelago lies off of the mainland.

---

Question: How high is the highest point in Guinea-Bissau?
Answer: 300 metres (984 ft).
Context: 

Brasília has a tropical savanna climate (Aw) according to the Köppen system, with two distinct seasons: the rainy season, from October to April, and a dry season, from May to September. The average temperature is 20.6 °C (69.1 °F). September, at the end of the dry season, has the highest average maximum temperature, 28.3 °C (82.9 °F), has major and minor lower maximum average temperature, of 25.1 °C (77.2 °F) and 12.9 °C (55.2 °F), respectively. Average temperatures from September through March are a consistent 22 °C (72 °F). With 247.4 mm (9.7 in), January is the month with the highest rainfall of the year, while June is the lowest, with only 8.7 mm (0.3 in).

---

Question: What is the average maximum temperature in Brasilia in September?
Answer: 28.3 °C (82.9 °F).
Context: 

Federal law and treaties, so long as they are in accordance with the Constitution, preempt conflicting state and territorial laws in the 50 U.S. states and in the territories. However, the scope of federal preemption is limited because the scope of federal power is not universal. In the dual-sovereign system of American federalism (actually tripartite because of the presence of Indian reservations), states are the plenary sovereigns, each with their own constitution, while the federal sovereign possesses only the limited supreme authority enumerated in the Constitution. Indeed, states may grant their citizens broader rights than the federal Constitution as long as they do not infringe on any federal constitutional rights. Thus, most U.S. law (especially the actual "living law" of contract, tort, property, criminal, and family law experienced by the majority of citizens on a day-to-day basis) consists primarily of state law, which can and does vary greatly from one state to the next.

---

Question: Is there anything that trumps state law?
Answer: Federal law and treaties.
Context: 

Hunter-gatherers tend to have an egalitarian social ethos, although settled hunter-gatherers (for example, those inhabiting the Northwest Coast of North America) are an exception to this rule. Nearly all African hunter-gatherers are egalitarian, with women roughly as influential and powerful as men.

---

Question: what group of hunter-gatherers are nearly all egalitarian?
Answer: African.
Context: 

According to the endurance running hypothesis, long-distance running as in persistence hunting, a method still practiced by some hunter-gatherer groups in modern times, was likely the driving evolutionary force leading to the evolution of certain human characteristics. This hypothesis does not necessarily contradict the scavenging hypothesis: both subsistence strategies could have been in use – sequentially, alternating or even simultaneously.

---

Question: Besides the endurance running hypothesis, what other theory of food collection is there?
Answer: scavenging hypothesis.
Context: 

With the advent of quantum physics, some scientists believed the concept of matter had merely changed, while others believed the conventional position could no longer be maintained. For instance Werner Heisenberg said "The ontology of materialism rested upon the illusion that the kind of existence, the direct 'actuality' of the world around us, can be extrapolated into the atomic range. This extrapolation, however, is impossible... atoms are not things." Likewise, some philosophers[which?] feel that these dichotomies necessitate a switch from materialism to physicalism. Others use the terms "materialism" and "physicalism" interchangeably.

---

Question: Werner Heisenberg suggested that atoms are not what?
Answer: things.
Context: 

Predators are often another organism's prey, and likewise prey are often predators. Though blue jays prey on insects, they may in turn be prey for cats and snakes, and snakes may be the prey of hawks. One way of classifying predators is by trophic level. Organisms that feed on autotrophs, the producers of the trophic pyramid, are known as herbivores or primary consumers; those that feed on heterotrophs such as animals are known as secondary consumers. Secondary consumers are a type of carnivore, but there are also tertiary consumers eating these carnivores, quartary consumers eating them, and so forth. Because only a fraction of energy is passed on to the next level, this hierarchy of predation must end somewhere, and very seldom goes higher than five or six levels, and may go only as high as three trophic levels (for example, a lion that preys upon large herbivores such as wildebeest, which in turn eat grasses). A predator at the top of any food chain (that is, one that is preyed upon by no organism) is called an apex predator; examples include the orca, sperm whale, anaconda, Komodo dragon, tiger, lion, tiger shark, Nile crocodile, and most eagles and owls—and even omnivorous humans and grizzly bears. An apex predator in one environment may not retain this position as a top predator if introduced to another habitat, such as a dog among alligators, a skunk in the presence of the great horned owl immune to skunk spray, or a snapping turtle among jaguars; a predatory species introduced into an area where it faces no predators, such as a domestic cat or a dog in some insular environments, can become an apex predator by default.

---

Question: In what pyramid position is an organism not preyed upon by any other predators?
Answer: the top.
Context: 

Comcast is sometimes described as a family business. Brian L. Roberts, Chairman, President, and CEO of Comcast, is son of co-founder Ralph Roberts. Roberts owns or controls just over 1% of all Comcast shares but all of the Class B supervoting shares, which gives him an "undilutable 33% voting power over the company". Legal expert Susan P. Crawford has said this gives him "effective control over its [Comcast's] every step". In 2010, he was one of the highest-paid executives in the United States, with total compensation of about $31 million.

---

Question: What is Roberts power on the Comcast board?
Answer: "undilutable 33% voting power over the company".
Context: 

The Hellenistic period covers the period of ancient Greek (Hellenic) history and Mediterranean history between the death of Alexander the Great in 323 BC and the emergence of the Roman Empire as signified by the Battle of Actium in 31 BC and the subsequent conquest of Ptolemaic Egypt the following year. At this time, Greek cultural influence and power was at its peak in Europe, Africa and Asia, experiencing prosperity and progress in the arts, exploration, literature, theatre, architecture, music, mathematics, philosophy, and science. For example, competitive public games took place, ideas in biology, and popular entertainment in theaters. It is often considered a period of transition, sometimes even of decadence or degeneration, compared to the enlightenment of the Greek Classical era. The Hellenistic period saw the rise of New Comedy, Alexandrian poetry, the Septuagint and the philosophies of Stoicism and Epicureanism. Greek Science was advanced by the works of the mathematician Euclid and the polymath Archimedes. The religious sphere expanded to include new gods such as the Greco-Egyptian Serapis, eastern deities such as Attis and Cybele and the Greek adoption of Buddhism.

---

Question: What signified the emergence of the Roman Empire?
Answer: Battle of Actium.
Context: 

Chopin's public popularity as a virtuoso began to wane, as did the number of his pupils, and this, together with the political strife and instability of the time, caused him to struggle financially. In February 1848, with the cellist Auguste Franchomme, he gave his last Paris concert, which included three movements of the Cello Sonata Op. 65.

---

Question: What instrument did Auguste Franchomme play?
Answer: Cello.
Context: 

A knot is a particular type of imperfection in a piece of wood; it will affect the technical properties of the wood, usually reducing the local strength and increasing the tendency for splitting along the wood grain, but may be exploited for visual effect. In a longitudinally sawn plank, a knot will appear as a roughly circular "solid" (usually darker) piece of wood around which the grain of the rest of the wood "flows" (parts and rejoins). Within a knot, the direction of the wood (grain direction) is up to 90 degrees different from the grain direction of the regular wood.

---

Question: What property of wood does a knot usually reduce in the wood around it?
Answer: strength.
Context: 

An additional extension to MPEG-2 is named MPEG-2.5 audio, as MPEG-3 already had a different meaning. This extension was developed at Fraunhofer IIS, the registered MP3 patent holders. Like MPEG-2, MPEG-2.5 adds new sampling rates exactly half of that previously possible with MPEG-2. It thus widens the scope of MP3 to include human speech and other applications requiring only 25% of the frequency reproduction possible with MPEG-1. While not an ISO recognized standard, MPEG-2.5 is widely supported by both inexpensive and brand name digital audio players as well as computer software based MP3 encoders and decoders. A sample rate comparison between MPEG-1, 2 and 2.5 is given further down. MPEG-2.5 was not developed by MPEG and was never approved as an international standard. MPEG-2.5 is thus an unofficial or proprietary extension to the MP3 format.

---

Question: As MPEG-3 had a different meaning, what was the name given to the extension of MPEG-2?
Answer: MPEG-2.5 audio.
Context: 

Barça's local rival has always been Espanyol. Blanc-i-blaus, being one of the clubs granted royal patronage, was founded exclusively by Spanish football fans, unlike the multinational nature of Barça's primary board. The founding message of the club was clearly anti-Barcelona, and they disapprovingly saw FC Barcelona as a team of foreigners. The rivalry was strengthened by what Catalonians saw as a provocative representative of Madrid. Their original ground was in the affluent district of Sarrià.

---

Question: Of what element of Barcelona's board did Espanyol disapprove?
Answer: multinational nature.
Context: 

The gates of the Temple of Jerusalem used Corinthian bronze made by depletion gilding. It was most prevalent in Alexandria, where alchemy is thought to have begun. In ancient India, copper was used in the holistic medical science Ayurveda for surgical instruments and other medical equipment. Ancient Egyptians (~2400 BC) used copper for sterilizing wounds and drinking water, and later on for headaches, burns, and itching. The Baghdad Battery, with copper cylinders soldered to lead, dates back to 248 BC to AD 226 and resembles a galvanic cell, leading people to believe this was the first battery; the claim has not been verified.

---

Question: What is the name of the battery that was developed using copper in 248 BC?
Answer: Baghdad Battery.
Context: 

In response, the EU decided to fill the gap left behind by the US under the Sandbaek report. According to its Annual Report for 2008, the UNFPA received its funding mainly from European Governments: Of the total income of M845.3 M, $118 was donated by the Netherlands, $67 M by Sweden, $62 M by Norway, $54 M by Denmark, $53 M by the UK, $52 M by Spain, $19 M by Luxembourg. The European Commission donated further $36 M. The most important non-European donor State was Japan ($36 M). The number of donors exceeded 180 in one year.

---

Question: Which non-European donor was most important to the UNFPA in 2008?
Answer: Japan.
Context: 

One major difference between Baroque music and the classical era that followed it is that the types of instruments used in ensembles were much less standardized. Whereas a classical era string quartet consists almost exclusively of two violins, a viola and a cello, a Baroque group accompanying a soloist or opera could include one of several different types of keyboard instruments (e.g., pipe organ, harpsichord, or clavichord), additional stringed chordal instruments (e.g., a lute) and an unspecified number of bass instruments performing the basso continuo bassline, including bowed strings, woodwinds and brass instruments (e.g., a cello, contrabass, viol, bassoon, serpent, etc.).

---

Question: What was less standardized during the Baroque era?
Answer: the types of instruments used in ensembles.