[Q]: Extract the answer to the question from the following context. Question: For what purpose are Attitude Indicators and Heading Indicators used? Context: Manifold vacuum can be used to drive accessories on automobiles. The best-known application is the vacuum servo, used to provide power assistance for the brakes. Obsolete applications include vacuum-driven windscreen wipers and Autovac fuel pumps. Some aircraft instruments (Attitude Indicator (AI) and the Heading Indicator (HI)) are typically vacuum-powered, as protection against loss of all (electrically powered) instruments, since early aircraft often did not have electrical systems, and since there are two readily available sources of vacuum on a moving aircraftthe engine and an external venturi. Vacuum induction melting uses electromagnetic induction within a vacuum.
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[A]: as protection against loss of all (electrically powered) instruments

[Q]: Extract the answer to the question from the following context. Question: From what specific time in history did the Japanese being empowering themselves? Context: Under German control, and even before then, Japanese traders and fishermen from time to time visited the Marshall Islands, although contact with the islanders was irregular. After the Meiji Restoration (1868), the Japanese government adopted a policy of turning the Japanese Empire into a great economic and military power in East Asia.
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[A]: 1868

[Q]: Extract the answer to the question from the following context. Question: What part of his name was Tito not born with? Context: Josip Broz Tito (Cyrillic: , pronounced [josip broz tito]; born Josip Broz; 7 May 1892[nb 1] 4 May 1980) was a Yugoslav revolutionary and statesman, serving in various roles from 1943 until his death in 1980. During World War II he was the leader of the Partisans, often regarded as the most effective resistance movement in occupied Europe. While his presidency has been criticized as authoritarian, and concerns about the repression of political opponents have been raised, Tito was "seen by most as a benevolent dictator" due to his economic and diplomatic policies. He was a popular public figure both in Yugoslavia and abroad. Viewed as a unifying symbol, his internal policies maintained the peaceful coexistence of the nations of the Yugoslav federation. He gained further international attention as the chief leader of the Non-Aligned Movement, working with Jawaharlal Nehru of India, Gamal Abdel Nasser of Egypt and Sukarno of Indonesia.
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[A]: Tito

[Q]: Extract the answer to the question from the following context. Question: What conclusion is made in the passage? Context: Information had been kept on digital tape for five years, with Kahle occasionally allowing researchers and scientists to tap into the clunky database. When the archive reached its fifth anniversary, it was unveiled and opened to the public in a ceremony at the University of California, Berkeley.
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[A]:
unveiled and opened to the public in a ceremony at the University of California, Berkeley