[Q]: Extract the answer to the question from the following context. Question: What has to happen for something to exist? Context: In fact, Whitehead describes any entity as in some sense nothing more and nothing less than the sum of its relations to other entities its synthesis of and reaction to the world around it. A real thing is just that which forces the rest of the universe to in some way conform to it; that is to say, if theoretically a thing made strictly no difference to any other entity (i.e. it was not related to any other entity), it could not be said to really exist. Relations are not secondary to what a thing is, they are what the thing is.
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[A]: reaction

input: Please answer the following: Extract the answer to the question from the following context. Question: What is psychoacoustics used on? Context: In lossy audio compression, methods of psychoacoustics are used to remove non-audible (or less audible) components of the audio signal. Compression of human speech is often performed with even more specialized techniques; speech coding, or voice coding, is sometimes distinguished as a separate discipline from audio compression. Different audio and speech compression standards are listed under audio coding formats. Voice compression is used in internet telephony, for example, audio compression is used for CD ripping and is decoded by the audio players.
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output: audio signal

Please answer this: Extract the answer to the question from the following context. Question: What does bile from the liver help do to fats? Context: Digestion of some fats can begin in the mouth where lingual lipase breaks down some short chain lipids into diglycerides. However fats are mainly digested in the small intestine. The presence of fat in the small intestine produces hormones that stimulate the release of pancreatic lipase from the pancreas and bile from the liver which helps in the emulsification of fats for absorption of fatty acids. Complete digestion of one molecule of fat (a triglyceride) results a mixture of fatty acids, mono- and di-glycerides, as well as some undigested triglycerides, but no free glycerol molecules.
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Answer: emulsification

Problem: Extract the answer to the question from the following context. Question: What do some wrestlers do to the count? Context: A countout (alternatively "count-out" or "count out") happens when a wrestler is out of the ring long enough for the referee to count to ten (twenty in some promotions) and thus disqualified. The count is broken and restarted when a wrestler in the ring exits the ring. Playing into this, some wrestlers will "milk" the count by sliding in the ring, and immediately sliding back out. As they were technically inside the ring for a split second before exiting again, it is sufficient to restart the count. This is often referred to by commentators as "breaking the count." Heels often use this tactic in order to buy themselves more time to catch their breath, or to attempt to frustrate their babyface opponents.

A: "milk" the count

Problem: Given the question: Extract the answer to the question from the following context. Question: What caused the rise of plate armor? Context: In the 1500s a new type of armor started to become popular due to the advent of firearms, new fighting tactics and the need for additional protection. The kozane dou made from individual scales was replaced by plate armor. This new armor, which used iron plated dou (do), was referred to as Tosei-gusoku, or modern armor. Various other components of armor protected the samurai's body. The helmet kabuto was an important part of the samurai's armor. Samurai armor changed and developed as the methods of samurai warfare changed over the centuries. The known last use of samurai armor occurring in 1877 during the satsuma rebellion. As the last samurai rebellion was crushed, Japan modernized its defenses and turned to a national conscription army that used uniforms.
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The answer is:
the advent of firearms, new fighting tactics and the need for additional protection

Problem: Extract the answer to the question from the following context. Question: On what road is the major hub for Philadelphia Greyhound found? Context: Philadelphia is also a major hub for Greyhound Lines, which operates 24-hour service to points east of the Mississippi River. Most of Greyhound's services in Philadelphia operate to/from the Philadelphia Greyhound Terminal, located at 1001 Filbert Street in Center City Philadelphia. In 2006, the Philadelphia Greyhound Terminal was the second busiest Greyhound terminal in the United States, after the Port Authority Bus Terminal in New York. Besides Greyhound, six other bus operators provide service to the Center City Greyhound terminal: Bieber Tourways, Capitol Trailways, Martz Trailways, Peter Pan Bus Lines, Susquehanna Trailways, and the bus division for New Jersey Transit. Other services include Megabus and Bolt Bus.

A:
Filbert Street