Problem: The Blitz:

On 13 March, the upper Clyde port of Clydebank near Glasgow was bombed. All but seven of its 12,000 houses were damaged. Many more ports were attacked. Plymouth was attacked five times before the end of the month while Belfast, Hull, and Cardiff were hit. Cardiff was bombed on three nights, Portsmouth centre was devastated by five raids. The rate of civilian housing lost was averaging 40,000 people per week dehoused in September 1940. In March 1941, two raids on Plymouth and London dehoused 148,000 people. Still, while heavily damaged, British ports continued to support war industry and supplies from North America continued to pass through them while the Royal Navy continued to operate in Plymouth, Southampton, and Portsmouth. Plymouth in particular, because of its vulnerable position on the south coast and close proximity to German air bases, was subjected to the heaviest attacks. On 10/11 March, 240 bombers dropped 193 tons of high explosives and 46,000 incendiaries. Many houses and commercial centres were heavily damaged, the electrical supply was knocked out, and five oil tanks and two magazines exploded. Nine days later, two waves of 125 and 170 bombers dropped heavy bombs, including 160 tons of high explosive and 32,000 incendiaries. Much of the city centre was destroyed. Damage was inflicted on the port installations, but many bombs fell on the city itself. On 17 April 346 tons of explosives and 46,000 incendiaries were dropped from 250 bombers led by KG 26. The damage was considerable, and the Germans also used aerial mines. Over 2,000 AAA shells were fired, destroying two Ju 88s. By the end of the air campaign over Britain, only eight percent of the German effort against British ports was made using mines.

How many AAA shells were fired?
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A: Over 2,000


Problem: The leading Cubist architects were Pavel Janák, Josef Gočár, Vlastislav Hofman, Emil Králíček and Josef Chochol. They worked mostly in Prague but also in other Bohemian towns. The best-known Cubist building is the House of the Black Madonna in the Old Town of Prague built in 1912 by Josef Gočár with the only Cubist café in the world, Grand Café Orient. Vlastislav Hofman built the entrance pavilions of Ďáblice Cemetery in 1912–1914, Josef Chochol designed several residential houses under Vyšehrad. A Cubist streetlamp has also been preserved near the Wenceslas Square, designed by Emil Králíček in 1912, who also built the Diamond House in the New Town of Prague around 1913.
Where did the leading Cubist architects work?
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Answer: Prague


Q: What is a question about this article? If the question is unanswerable, say "unanswerable".
Insects were among the earliest terrestrial herbivores and acted as major selection agents on plants. Plants evolved chemical defenses against this herbivory and the insects, in turn, evolved mechanisms to deal with plant toxins. Many insects make use of these toxins to protect themselves from their predators. Such insects often advertise their toxicity using warning colors. This successful evolutionary pattern has also been used by mimics. Over time, this has led to complex groups of coevolved species. Conversely, some interactions between plants and insects, like pollination, are beneficial to both organisms. Coevolution has led to the development of very specific mutualisms in such systems.
What type of defense did plants adaptively evolve in response to insects?
A: chemical


Context and question: In Brazil, the Presbyterian Church of Brazil (Igreja Presbiteriana do Brasil) totals approximately 1,011,300 members; other Presbyterian churches (Independents, United, Conservatives, Renovated, etc.) in this nation have around 350,000 members. The Renewed Presbyterian Church in Brazil was influenced by the charismatic movement and has about 131 000 members as of 2011. The Conservative Presbyterian Church was founded in 1940 and has eight presbyteries. The Fundamentalist Presbyterian church in Brazil was influenced by Karl McIntosh and the Bible Presbyterian church USA and has around 1 800 members. The Independent Presbyterian Church in Brasil was founded in 1903 by pastor Pereira, has 500 congregations and 75 000 members. The United Presbyterian Church in Brazil has around 4 000 members. There are also ethnic Korean Presbyterian churches in the country. The Evangelical Reformed Church in Brazil has Dutch origin. The Reformed Churches in Brazil were recently founded by the Canadian Reformed Churches with the Reformed Church in the Netherlands (liberated).
How many members does the United Presbyterian Church in Korea have?
Answer: unanswerable


Question: BBC TV was renamed BBC1 in 1964, after the launch of BBC2 (now BBC Two), the third television station (ITV was the second) for the UK; its remit, to provide more niche programming. The channel was due to launch on 20 April 1964, but was put off the air by a massive power failure that affected much of London, caused by a fire at Battersea Power Station. A videotape made on the opening night was rediscovered in 2003 by a BBC technician. In the end the launch went ahead the following night, hosted by Denis Tuohy holding a candle. BBC2 was the first British channel to use UHF and 625-line pictures, giving higher definition than the existing VHF 405-line system.
Is there an answer to this question: What channel was launched that caused BBC TV to be renamed BBC2?

Answer: unanswerable


Problem: Greece:

Sweet desserts such as galaktoboureko, and drinks such as ouzo, metaxa and a variety of wines including retsina. Greek cuisine differs widely from different parts of the mainland and from island to island. It uses some flavorings more often than other Mediterranean cuisines: oregano, mint, garlic, onion, dill and bay laurel leaves. Other common herbs and spices include basil, thyme and fennel seed. Many Greek recipes, especially in the northern parts of the country, use "sweet" spices in combination with meat, for example cinnamon and cloves in stews.

What is one of the flavorings commonly used in Greek Mediterranean food? 
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A:
oregano