input: Please answer the following: Extract the answer to the question from the following context. Question: __ has been a central part of agriculture for 5000 years. Context: The Alps provide lowland Europe with drinking water, irrigation, and hydroelectric power. Although the area is only about 11 percent of the surface area of Europe, the Alps provide up to 90 percent of water to lowland Europe, particularly to arid areas and during the summer months. Cities such as Milan depend on 80 percent of water from Alpine runoff. Water from the rivers is used in over 500 hydroelectricity power plants, generating as much as 2900 kilowatts of electricity.
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output: irrigation

input: Please answer the following: Extract the answer to the question from the following context. Question: In addition to a charter what does Detroit have? Context: The city is governed pursuant to the Home Rule Charter of the City of Detroit. The city government is run by a mayor and a nine-member city council and clerk elected on an at-large nonpartisan ballot. Since voters approved the city's charter in 1974, Detroit has had a "strong mayoral" system, with the mayor approving departmental appointments. The council approves budgets but the mayor is not obligated to adhere to any earmarking. City ordinances and substantially large contracts must be approved by the council. The Detroit City Code is the codification of Detroit's local ordinances.
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output: Detroit City Code

input: Please answer the following: Extract the answer to the question from the following context. Question: What kind of information does the human mind have limitations with? Context: Arthur M. Diamond argues Hayek's problems arise when he goes beyond claims that can be evaluated within economic science. Diamond argued that: "The human mind, Hayek says, is not just limited in its ability to synthesize a vast array of concrete facts, it is also limited in its ability to give a deductively sound ground to ethics. Here is where the tension develops, for he also wants to give a reasoned moral defense of the free market. He is an intellectual skeptic who wants to give political philosophy a secure intellectual foundation. It is thus not too surprising that what results is confused and contradictory."
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output: vast array of concrete facts, it is also limited in its ability to give a deductively sound ground to ethics

input: Please answer the following: Extract the answer to the question from the following context. Question: What is the first example of sexual behavior mentioned in the text? Context: Given the potential consequences, engaging in sexual behavior is somewhat risky, particularly for adolescents. Having unprotected sex, using poor birth control methods (e.g. withdrawal), having multiple sexual partners, and poor communication are some aspects of sexual behavior that increase individual and/or social risk. Some qualities of adolescents' lives that are often correlated with risky sexual behavior include higher rates of experienced abuse, lower rates of parental support and monitoring. Adolescence is also commonly a time of questioning sexuality and gender. This may involve intimate experimentation with people identifying as the same gender as well as with people of differing genders. Such exploratory sexual behavior can be seen as similar to other aspects of identity, including the exploration of vocational, social, and leisure identity, all of which involve some risk.
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output:
Having unprotected sex