Input: Read this: Ethnically and linguistically the population of the Republic of the Congo is diverse—Ethnologue recognises 62 spoken languages in the country—but can be grouped into three categories. The Kongo are the largest ethnic group and form roughly half of the population. The most significant subgroups of the Kongo are Laari in Brazzaville and Pool regions and Vili around Pointe-Noire and along the Atlantic coast. The second largest group are the Teke who live to the north of Brazzaville with 17% of the population. Boulangui (M’Boshi) live in the northwest and in Brazzaville and form 12% of the population. Pygmies make up 2% of Congo's population.
Question: How many groups can the Teke be categorized into?

Output: unanswerable


QUES: Despite plans of expanding into other global regions and product segments, Dell was heavily dependent on U.S. corporate PC market, as desktop PCs sold to both commercial and corporate customers accounted for 32 percent of its revenue, 85 percent of its revenue comes from businesses, and Sixty-four percent of its revenue comes from North and South America, according to its 2006 third-quarter results. U.S. shipments of desktop PCs were shrinking, and the corporate PC market which purchases PCs in upgrade cycles had largely decided to take a break from buying new systems. The last cycle started around 2002, three or so years after companies started buying PCs ahead of the perceived Y2K problems, and corporate clients were not expected to upgrade again until extensive testing of Microsoft's Windows Vista (expected in early 2007), putting the next upgrade cycle around 2008. Heavily depending on PCs, Dell had to slash prices to boost sales volumes, while demanding deep cuts from suppliers.

What percentage of Dell's profits were desktop PCs being sold to commercial and home buyers?
What is the answer?
ANS: unanswerable


QUES: Southampton as a Port and city has had a long history of administrative independence of the surrounding County; as far back as the reign of King John the town and its port were removed from the writ of the King's Sheriff in Hampshire and the rights of custom and toll were granted by the King to the burgesses of Southampton over the port of Southampton and the Port of Portsmouth; this tax farm was granted for an annual fee of £200 in the charter dated at Orival on 29 June 1199. The definition of the port of Southampton was apparently broader than today and embraced all of the area between Lymington and Langstone. The corporation had resident representatives in Newport, Lymington and Portsmouth. By a charter of Henry VI, granted on 9 March 1446/7 (25+26 Hen. VI, m. 32), the mayor, bailiffs and burgesses of the towns and ports of Southampton and Portsmouth became a County incorporate and separate from Hampshire.
What was the annual fee paid by the burgesses of Southampton for the rights of custom and toll laid out in the charter of 1199?

ANS: £200


In 1906, precipitation hardening alloys were discovered by Alfred Wilm. Precipitation hardening alloys, such as certain alloys of aluminium, titanium, and copper, are heat-treatable alloys that soften when quenched (cooled quickly), and then harden over time. After quenching a ternary alloy of aluminium, copper, and magnesium, Wilm discovered that the alloy increased in hardness when left to age at room temperature. Although an explanation for the phenomenon was not provided until 1919, duralumin was one of the first "age hardening" alloys to be used, and was soon followed by many others. Because they often exhibit a combination of high strength and low weight, these alloys became widely used in many forms of industry, including the construction of modern aircraft.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who discovered precipitation hardening alloys in 1919?
Ah, so.. unanswerable


Question: In 1941, the Luftwaffe shifted strategy again. Erich Raeder—commander-in-chief of the Kriegsmarine—had long argued the Luftwaffe should support the German submarine force (U-Bootwaffe) in the Battle of the Atlantic by attacking shipping in the Atlantic Ocean and attacking British ports. Eventually, he convinced Hitler of the need to attack British port facilities. Hitler had been convinced by Raeder that this was the right course of action due to the high success rates of the U-Boat force during this period of the war. Hitler correctly noted that the greatest damage to the British war economy had been done through submarines and air attacks by small numbers of Focke-Wulf Fw 200 naval aircraft. He ordered attacks to be carried out on those targets which were also the target of the Kriegsmarine. This meant that British coastal centres and shipping at sea west of Ireland were the prime targets.
Try to answer this question if possible: What became the new targets for the Kriegsmarine?
Answer: British coastal centres and shipping at sea west of Ireland


Context and question: In the 20th century, as Beijing, Shanghai, Nanjing, and Wuhan had all been occupied by the Japanese during the Second Sino-Japanese War, the capital of the Republic of China had been temporary relocated to Chongqing, then a major city in Sichuan. An enduring legacy of this move is that nearby inland provinces, such as Shaanxi, Gansu, and Guizhou, which previously never had modern Western-style universities, began to be developed in this regard. The difficulty of accessing the region overland from the eastern part of China and the foggy climate hindering the accuracy of Japanese bombing of the Sichuan Basin, made the region the stronghold of Chiang Kai-Shek's Kuomintang government during 1938-45, and led to the Bombing of Chongqing.
What are some reasons for the lack of accurate Japanese bombing during the Second Sino-Japanese War in the Sichuan Basin?
Answer:
The difficulty of accessing the region overland from the eastern part of China and the foggy climate