input question: Extract the answer to the question from the following context. Question: Solar power may produce most of the world's electricity at? Context: According to a 2011 projection by the International Energy Agency, solar power plants may produce most of the world's electricity within 50 years, significantly reducing the emissions of greenhouse gases that harm the environment. The IEA has said: "Photovoltaic and solar-thermal plants may meet most of the world's demand for electricity by 2060 and half of all energy needs with wind, hydropower and biomass plants supplying much of the remaining generation". "Photovoltaic and concentrated solar power together can become the major source of electricity".???
output answer: 2060

Extract the answer to the question from the following context. Question: How can a majority party be seen as inefficient? Context: A look at one minority leadership strategypartisan oppositionmay suggest why it might be employed in specific circumstances. The purposes of obstruction are several, such as frustrating the majority party's ability to govern or attracting press and media attention to the alleged ineffectiveness of the majority party. "We know how to delay," remarked Minority Leader Gephardt Dilatory motions to adjourn, appeals of the presiding officer's ruling, or numerous requests for roll call votes are standard time-consuming parliamentary tactics. By stalling action on the majority party's agenda, the minority leader may be able to launch a campaign against a "do-nothing Congress" and convince enough voters to put his party back in charge of the House. To be sure, the minority leader recognizes that "going negative" carries risks and may not be a winning strategy if his party fails to offer policy alternatives that appeal to broad segments of the general public.
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Answer: obstruction

Q: Extract the answer to the question from the following context. Question: What are these elevators most helpful in doing? Context: A climbing elevator is a self-ascending elevator with its own propulsion. The propulsion can be done by an electric or a combustion engine. Climbing elevators are used in guyed masts or towers, in order to make easy access to parts of these constructions, such as flight safety lamps for maintenance. An example would be the Moonlight towers in Austin, Texas, where the elevator holds only one person and equipment for maintenance. The Glasgow Tower an observation tower in Glasgow, Scotland also makes use of two climbing elevators.
A: access to parts

Question: Extract the answer to the question from the following context. Question: What miracle does perpeual virginity imply? Context: The Perpetual Virginity of Mary asserts Mary's real and perpetual virginity even in the act of giving birth to the Son of God made Man. The term Ever-Virgin (Greek ) is applied in this case, stating that Mary remained a virgin for the remainder of her life, making Jesus her biological and only son, whose conception and birth are held to be miraculous. While the Orthodox Churches hold the position articulated in the Protoevangelium of James that Jesus' brothers and sisters are older children of Joseph the Betrothed, step-siblings from an earlier marriage that left him widowed, Roman Catholic teaching follows the Latin father Jerome in considering them Jesus' cousins.
Answer: virginity even in the act of giving birth

[Q]: Extract the answer to the question from the following context. Question: Besides the French, other Europeans involved where? Context: During the middle decades of the 18th century, there were several outbreaks of military conflict on the Indian subcontinent, the Carnatic Wars, as the English East India Company (the Company) and its French counterpart, the Compagnie francaise des Indes orientales, struggled alongside local rulers to fill the vacuum that had been left by the decline of the Mughal Empire. The Battle of Plassey in 1757, in which the British, led by Robert Clive, defeated the Nawab of Bengal and his French allies, left the Company in control of Bengal and as the major military and political power in India. France was left control of its enclaves but with military restrictions and an obligation to support British client states, ending French hopes of controlling India. In the following decades the Company gradually increased the size of the territories under its control, either ruling directly or via local rulers under the threat of force from the British Indian Army, the vast majority of which was composed of Indian sepoys.
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[A]: British

Problem: Given the question: Extract the answer to the question from the following context. Question: By using software to get into a database, what remains hidden? Context: Many other databases have application software that accesses the database on behalf of end-users, without exposing the DBMS interface directly. Application programmers may use a wire protocol directly, or more likely through an application programming interface. Database designers and database administrators interact with the DBMS through dedicated interfaces to build and maintain the applications' databases, and thus need some more knowledge and understanding about how DBMSs operate and the DBMSs' external interfaces and tuning parameters.
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The answer is:
DBMS interface