Question: Extract the answer to the question from the following context. Question: What is approximately equal to 3.14159? Context: Three Han mathematical treatises still exist. These are the Book on Numbers and Computation, the Arithmetical Classic of the Gnomon and the Circular Paths of Heaven and the Nine Chapters on the Mathematical Art. Han-era mathematical achievements include solving problems with right-angle triangles, square roots, cube roots, and matrix methods, finding more accurate approximations for pi, providing mathematical proof of the Pythagorean theorem, use of the decimal fraction, Gaussian elimination to solve linear equations, and continued fractions to find the roots of equations.
Answer: pi

[Q]: Extract the answer to the question from the following context. Question: What is a AAW? Context: NATO defines anti-aircraft warfare (AAW) as "measures taken to defend a maritime force against attacks by airborne weapons launched from aircraft, ships, submarines and land-based sites." In some armies the term All-Arms Air Defence (AAAD) is used for air defence by non-specialist troops. Other terms from the late 20th century include GBAD (Ground Based AD) with related terms SHORAD (Short Range AD) and MANPADS ("Man Portable AD Systems": typically shoulder-launched missiles). Anti-aircraft missiles are variously called surface-to-air missile, abbreviated and pronounced "SAM" and Surface to Air Guided Weapon (SAGW).
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[A]: measures taken to defend a maritime force against attacks by airborne weapons launched from aircraft, ships, submarines and land-based sites

input: Please answer the following: Extract the answer to the question from the following context. Question: What was no longer available after the update? Context: The 'OtherOS' functionality was not present in the updated PS Slim models, and the feature was subsequently removed from previous versions of the PS3 as part of the machine's firmware update version 3.21 which was released on April 1, 2010; Sony cited security concerns as the rationale. The firmware update 3.21 was mandatory for access to the PlayStation Network. The removal caused some controversy; as the update removed officially advertised features from already sold products, and gave rise to several class action lawsuits aimed at making Sony return the feature or provide compensation.
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output: officially advertised features

Please answer this: Extract the answer to the question from the following context. Question: What did Niemeyer do? Context: Juscelino Kubitschek, President of Brazil from 1956 to 1961, ordered the construction of Brasilia, fulfilling the promise of the Constitution and his own political campaign promise. Building Brasilia was part of Juscelino's "fifty years of prosperity in five" plan. Lucio Costa won a contest and was the main urban planner in 1957, with 5550 people competing. Oscar Niemeyer, a close friend, was the chief architect of most public buildings and Roberto Burle Marx was the landscape designer. Brasilia was built in 41 months, from 1956 to April 21, 1960, when it was officially inaugurated.
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Answer: chief architect of most public buildings

Problem: Extract the answer to the question from the following context. Question: What government did not have a secretive response to Cyclone Nargis? Context: Francis Marcus of the International Federation of the Red Cross praised the Chinese rescue effort as "swift and very efficient" in Beijing on Tuesday. But he added the scale of the disaster was such that "we can't expect that the government can do everything and handle every aspect of the needs". The Economist noted that China reacted to the disaster "rapidly and with uncharacteristic openness", contrasting it with Burma's secretive response to Cyclone Nargis, which devastated that country 10 days before the earthquake.

A: Chinese

input: Please answer the following: Extract the answer to the question from the following context. Question: Whatdoes the city hope to achieve with the Sustainable Water Master Plan? Context: An urban runoff facility (SMURFF), the first of its kind in the US, catches and treats 3.5 million US gallons (13,000 m3) of water each week that would otherwise flow into the bay via storm-drains and sells it back to end-users within the city for reuse as gray-water, while bio-swales throughout the city allow rainwater to percolate into and replenish the groundwater supply. The groundwater supply in turn plays an important role in the city's Sustainable Water Master Plan, whereby Santa Monica has set a goal of attaining 100% water independence by 2020. The city has numerous programs designed to promote water conservation among residents, including a rebate of $1.50 per square foot for those who convert water intensive lawns to more local drought-tolerant gardens that require less water.
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output:
100% water independence by 2020