This task is about writing a correct answer for the reading comprehension task. Based on the information provided in a given passage, you should identify the shortest continuous text span from the passage that serves as an answer to the given question. Avoid answers that are incorrect or provides incomplete justification for the question.

Q: Passage: Compact Disc (CD) is a digital optical disc data storage format. The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM). Several other formats were further derived from these, including write-once audio and data storage (CD-R), rewritable media (CD-RW), Video Compact Disc (VCD), Super Video Compact Disc (SVCD), Photo CD, PictureCD, CD-i, and Enhanced Music CD. Audio CDs and audio CD players have been commercially available since October 1982. Question: What does SVCD stand for?

A: Super Video Compact Disc
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Q: Passage: The city of Rome had a place called the Campus Martius ("Field of Mars"), which was a sort of drill ground for Roman soldiers. Later, the Campus became Rome's track and field playground. In the campus, the youth assembled to play and exercise, which included jumping, wrestling, boxing and racing.[citation needed] Equestrian sports, throwing, and swimming were also preferred physical activities.[citation needed] In the countryside, pastimes included fishing and hunting.[citation needed] Board games played in Rome included dice (Tesserae or Tali), Roman Chess (Latrunculi), Roman Checkers (Calculi), Tic-tac-toe (Terni Lapilli), and Ludus duodecim scriptorum and Tabula, predecessors of backgammon. Other activities included chariot races, and musical and theatrical performances.[citation needed] Question: What could you also call Rome's Campus Maritus?

A: Field of Mars
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Q: Passage: Brasília (Portuguese pronunciation: [bɾaˈziljɐ]) is the federal capital of Brazil and seat of government of the Federal District. The city is located atop the Brazilian highlands in the country's center-western region. It was founded on April 21, 1960, to serve as the new national capital. Brasília and its metro (encompassing the whole of the Federal District) had a population of 2,556,149 in 2011, making it the 4th most populous city in Brazil. Among major Latin American cities, Brasília has the highest GDP per capita at R$61,915 (US$36,175). Question: What is the population of Brasilia's metro area?

A:
2,556,149
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