Problem: Hanover:

In 1636 George, Duke of Brunswick-Lüneburg, ruler of the Brunswick-Lüneburg principality of Calenberg, moved his residence to Hanover. The Dukes of Brunswick-Lüneburg were elevated by the Holy Roman Emperor to the rank of Prince-Elector in 1692, and this elevation was confirmed by the Imperial Diet in 1708. Thus the principality was upgraded to the Electorate of Brunswick-Lüneburg, colloquially known as the Electorate of Hanover after Calenberg's capital (see also: House of Hanover). Its electors would later become monarchs of Great Britain (and from 1801, of the United Kingdom of Great Britain and Ireland). The first of these was George I Louis, who acceded to the British throne in 1714. The last British monarch who ruled in Hanover was William IV. Semi-Salic law, which required succession by the male line if possible, forbade the accession of Queen Victoria in Hanover. As a male-line descendant of George I, Queen Victoria was herself a member of the House of Hanover. Her descendants, however, bore her husband's titular name of Saxe-Coburg-Gotha. Three kings of Great Britain, or the United Kingdom, were concurrently also Electoral Princes of Hanover.

Who was the last Elector of Hanover to sit on the British throne?
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A: unanswerable


Problem: The system's launch represented not only a new product, but also a reframing of the severely damaged home video game market segment as a whole. The video game market crash of 1983 had occurred in significant part due to a lack of consumer and retailer confidence in video games, which had in turn been due partially to confusion and misrepresentation in the marketing of video games. Prior to the NES, the packaging of many video games presented bombastic artwork which exaggerated the graphics of the actual game. In terms of product identity, a single game such as Pac-Man would appear in many versions on many different game consoles and computers, with large variations in graphics, sound, and general quality between the versions. By stark contrast, Nintendo's marketing strategy aimed to regain consumer and retailer confidence, by delivering a singular platform whose technology was not in need of heavy exaggeration and whose qualities were clearly defined.
The crash was caused in part by the confusion and misrepresentation of what in video games?
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Answer: marketing


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Since annelids are soft-bodied, their fossils are rare – mostly jaws and the mineralized tubes that some of the species secreted. Although some late Ediacaran fossils may represent annelids, the oldest known fossil that is identified with confidence comes from about 518 million years ago in the early Cambrian period. Fossils of most modern mobile polychaete groups appeared by the end of the Carboniferous, about 299 million years ago. Palaeontologists disagree about whether some body fossils from the mid Ordovician, about 472 to 461 million years ago, are the remains of oligochaetes, and the earliest indisputable fossils of the group appear in the Tertiary period, which began 65 million years ago.
How old is the earliest annelid fossil?
A: 518 million years ago


Context and question: Germany and the Soviet Union entered an intricate trade pact on February 11, 1940, that was over four times larger than the one the two countries had signed in August 1939. The trade pact helped Germany to surmount a British blockade of Germany. In the first year, Germany received one million tons of cereals, half a million tons of wheat, 900,000 tons of oil, 100,000 tons of cotton, 500,000 tons of phosphates and considerable amounts of other vital raw materials, along with the transit of one million tons of soybeans from Manchuria.[citation needed] These and other supplies were being transported through Soviet and occupied Polish territories. The Soviets were to receive a naval cruiser, the plans to the battleship Bismarck, heavy naval guns, other naval gear and thirty of Germany's latest warplanes, including the Me-109 and Me-110 fighters and Ju-88 bomber. The Soviets would also receive oil and electric equipment, locomotives, turbines, generators, diesel engines, ships, machine tools and samples of German artillery, tanks, explosives, chemical-warfare equipment and other items.
How much more expansive was the newest trade agreement?
Answer: was over four times larger


Question: The Bronx Museum of the Arts, founded in 1971, exhibits 20th century and contemporary art through its central museum space and 11,000 square feet (1,000 m2) of galleries. Many of its exhibitions are on themes of special interest to the Bronx. Its permanent collection features more than 800 works of art, primarily by artists from Africa, Asia and Latin America, including paintings, photographs, prints, drawings, and mixed media. The museum was temporarily closed in 2006 while it underwent a major expansion designed by the architectural firm Arquitectonica.
Is there an answer to this question: What types of art does the Bronx Museum of the Arts focus on?

Answer: 20th century and contemporary art


Problem: Glass:

Following the glass batch preparation and mixing, the raw materials are transported to the furnace. Soda-lime glass for mass production is melted in gas fired units. Smaller scale furnaces for specialty glasses include electric melters, pot furnaces, and day tanks. After melting, homogenization and refining (removal of bubbles), the glass is formed. Flat glass for windows and similar applications is formed by the float glass process, developed between 1953 and 1957 by Sir Alastair Pilkington and Kenneth Bickerstaff of the UK's Pilkington Brothers, who created a continuous ribbon of glass using a molten tin bath on which the molten glass flows unhindered under the influence of gravity. The top surface of the glass is subjected to nitrogen under pressure to obtain a polished finish. Container glass for common bottles and jars is formed by blowing and pressing methods. This glass is often slightly modified chemically (with more alumina and calcium oxide) for greater water resistance. Further glass forming techniques are summarized in the table Glass forming techniques.

What happens during refining?
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A:
removal of bubbles