Article: In Mexico, Carnival is celebrated in about 225 cities and towns. The largest is in Mazatlán and the city of Veracruz with others in Baja California and Yucatán. The larger city Carnivals employ costumes, elected queens and parades with floats, but Carnival celebrations in smaller and rural areas vary widely depending on the level of European influence during Mexico's colonial period. The largest of these is in Huejotzingo, Puebla where most townspeople take part in mock combat with rifles shooting blanks, roughly based on the Battle of Puebla. Other important states with local traditions include Morelos, Oaxaca, Tlaxcala and Chiapas.

Question: Morelos, Oaxaca, Tlaxcala and Chiapas are important states which also have their own what?
Ans: local traditions


Here is a question about this article: Carnivore was an electronic eavesdropping software system implemented by the FBI during the Clinton administration; it was designed to monitor email and electronic communications. After prolonged negative coverage in the press, the FBI changed the name of its system from "Carnivore" to "DCS1000." DCS is reported to stand for "Digital Collection System"; the system has the same functions as before. The Associated Press reported in mid-January 2005 that the FBI essentially abandoned the use of Carnivore in 2001, in favor of commercially available software, such as NarusInsight.
What is the answer to this question: What kind of software replaced Carnivore?
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So... commercially available


The problem: Answer a question about this article:
Albert Einstein proposed that the laws of physics should be based on the principle of relativity. This principle holds that the rules of physics must be the same for all observers, regardless of the frame of reference that is used, and that light propagates at the same speed in all reference frames. This theory was motivated by Maxwell's equations, which show that electromagnetic waves propagate in a vacuum at the speed of light. However, Maxwell's equations give no indication of what this speed is relative to. Prior to Einstein, it was thought that this speed was relative to a fixed medium, called the luminiferous ether. In contrast, the theory of special relativity postulates that light propagates at the speed of light in all inertial frames, and examines the implications of this postulate.
Before Einstein, speed was though to be relative to what?
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The answer: the luminiferous ether


Problem: Please answer a question about the following article about Transistor:
In a switching circuit, the idea is to simulate, as near as possible, the ideal switch having the properties of open circuit when off, short circuit when on, and an instantaneous transition between the two states. Parameters are chosen such that the "off" output is limited to leakage currents too small to affect connected circuitry; the resistance of the transistor in the "on" state is too small to affect circuitry; and the transition between the two states is fast enough not to have a detrimental effect.
How quickly does the change from open circuit to short circuit happen?
A: instantaneous


Question: Read this and answer the question

Garry Trudeau, creator of the political Doonesbury comic strip, attended Yale University. There he met fellow student and later Green Party candidate for Congress Charles Pillsbury, a long-time New Haven resident for whom Trudeau's comic strip is named. During his college years, Pillsbury was known by the nickname "The Doones". A theory of international law, which argues for a sociological normative approach in regards to jurisprudence, is named the New Haven Approach, after the city. Connecticut US senator Richard Blumenthal is a Yale graduate, as is former Connecticut US Senator Joe Lieberman who also was a New Haven resident for many years, before moving back to his hometown of Stamford.

For which long-time New Haven resident and former Yale student is Doonesbury named?
Answer: Charles Pillsbury


Despite significant European success during the 1970s and early 1980s, the late '80s had marked a low point for English football. Stadiums were crumbling, supporters endured poor facilities, hooliganism was rife, and English clubs were banned from European competition for five years following the Heysel Stadium disaster in 1985. The Football League First Division, which had been the top level of English football since 1888, was well behind leagues such as Italy's Serie A and Spain's La Liga in attendances and revenues, and several top English players had moved abroad.
Why were the English clubs banned from European competition in the 1980's?
English clubs were banned from European competition for five years following the Heysel Stadium disaster in 1985.