Problem: Given the question: Extract the answer to the question from the following context. Question: What info is relevant to understand the main point of the passage? Context: Finland has used comprehensive schools since the 1970s, in the sense that everyone is expected to complete the nine grades of peruskoulu, from the age 7 to 16. The division to lower comprehensive school (grades 16, ala-aste, alakoulu) and upper comprehensive school (grades 79, ylaaste, ylakoulu) has been discontinued.
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The answer is:
Finland has used comprehensive schools since the 1970s

Problem: Given the question: Extract the answer to the question from the following context. Question: A light bulb that does uses fluorescence to produce visible light is called? Context: Objections to banning the use of incandescent light bulbs include the higher initial cost of alternatives and lower quality of light of fluorescent lamps. Some people have concerns about the health effects of fluorescent lamps. However, even though they contain mercury, the environmental performance of CFLs is much better than that of light bulbs, mostly because they consume much less energy and therefore strongly reduce the environmental impact of power production. LED lamps are even more efficient, and are free of mercury. They are regarded as the best solution in terms of cost effectiveness and robustness.
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The answer is:
fluorescent

Problem: Given the question: Extract the answer to the question from the following context. Question: What were warriors called in Japan? Context: Maintaining the household was the main duty of samurai women. This was especially crucial during early feudal Japan, when warrior husbands were often traveling abroad or engaged in clan battles. The wife, or okugatasama (meaning: one who remains in the home), was left to manage all household affairs, care for the children, and perhaps even defend the home forcibly. For this reason, many women of the samurai class were trained in wielding a polearm called a naginata or a special knife called the kaiken in an art called tantojutsu (lit. the skill of the knife), which they could use to protect their household, family, and honor if the need arose.
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The answer is:
samurai