[Q]: Question: "tagging is a tool for?" Context: "Sometimes, poly-sided matches that pit every one for themselves will incorporate tagging rules. Outside of kayfabe, this is done to give wrestlers a break from the action (as these matches tend to go on for long periods of time), and to make the action in the ring easier to choreograph. One of the most mainstream examples of this is the four-corner match, the most common type of match in the WWE before it was replaced with its equivalent fatal four-way; four wrestlers, each for themselves, fight in a match, but only two wrestlers can be in the match at any given time. The other two are positioned in the corner, and tags can be made between any two wrestlers." Answer:
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[A]: wrestlers

[Q]: Question: "On what days did the shortest battle mentioned in the passage take place?" Context: "The principal battles of the stalemate include the Battle of Bloody Ridge (18 August15 September 1951), the Battle of the Punchbowl (31 August-21 September 1951), the Battle of Heartbreak Ridge (13 September15 October 1951), the Battle of Old Baldy (26 June4 August 1952), the Battle of White Horse (615 October 1952), the Battle of Triangle Hill (14 October25 November 1952), the Battle of Hill Eerie (21 March21 June 1952), the sieges of Outpost Harry (1018 June 1953), the Battle of the Hook (2829 May 1953), the Battle of Pork Chop Hill (23 March16 July 1953), and the Battle of Kumsong (1327 July 1953)." Answer:
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[A]: 2829 May 1953

[Q]: Question: "Where is engineering offered?" Context: "In India there are many polytechnic institutes and collages that offer a polytechnic education. In India a Diploma in Engineering is a specific academic award usually awarded in technical or vocational courses e.g. Engineering, Pharmacy, Designing, etc. These Institutions offer three year diploma in engineering post Tenth class. These institutes have affiliation from state bord of technical education of respective state governments. after which one can apply for post of junior engineer or continue higher studies by appearing for exams of AMIE to become an engineering graduate." Answer:
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[A]: polytechnic institutes and collages

[Q]: Question: "How does it influence the world's economy?" Context: "London is a leading global city, with strengths in the arts, commerce, education, entertainment, fashion, finance, healthcare, media, professional services, research and development, tourism, and transport all contributing to its prominence. It is one of the world's leading financial centres and has the fifth-or sixth-largest metropolitan area GDP in the world depending on measurement.[note 3] London is a world cultural capital. It is the world's most-visited city as measured by international arrivals and has the world's largest city airport system measured by passenger traffic. London is one of the world's leading investment destinations, hosting more international retailers and ultra high-net-worth individuals than any other city. London's 43 universities form the largest concentration of higher education institutes in Europe, and a 2014 report placed it first in the world university rankings. According to the report London also ranks first in the world in software, multimedia development and design, and shares first position in technology readiness. In 2012, London became the first city to host the modern Summer Olympic Games three times." Answer:
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[A]:
has the fifth-or sixth-largest metropolitan area GDP in the world depending on measurement