The problem: Answer a question about this article:
Due to the tree structure of the filter bank, pre-echo problems are made worse, as the combined impulse response of the two filter banks does not, and cannot, provide an optimum solution in time/frequency resolution. Additionally, the combining of the two filter banks' outputs creates aliasing problems that must be handled partially by the "aliasing compensation" stage; however, that creates excess energy to be coded in the frequency domain, thereby decreasing coding efficiency.[citation needed]
Due to a specific kind of structure, what kind of problems are made worse?
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The answer: pre-echo problems


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Beginning with the Paris Exposition of 1878, the instrument's popularity rebounded. The Exposition was one of many stops for a popular new performing group the Estudiantes Españoles (Spanish Students). They danced and played guitars, violins and the bandurria, which became confused with the mandolin. Along with the energy and awareness created by the day's hit sensation, a wave of Italian mandolinists travelled Europe in the 1880s and 1890s and in the United States by the mid-1880s, playing and teaching their instrument. The instrument's popularity continued to increase during the 1890s and mandolin popularity was at its height in "early years of the 20th century." Thousands were taking up the instrument as a pastime, and it became an instrument of society, taken up by young men and women. Mandolin orchestras were formed worldwide, incorporating not only the mandolin family of instruments, but also guitars, double basses and zithers.
What popular group performed at the Paris Exposition? 
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The answer: Estudiantes Españoles (Spanish Students)


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The Dutch language has been known under a variety of names. In Middle Dutch, which was a collection of dialects, dietsc was used in Flanders and Brabant, while diets or duutsc was in use in the Northern Netherlands. It derived from the Old Germanic word theudisk, one of the first names ever used for the non-Romance languages of Western Europe, meaning (pertaining to the language) of the people, that is, the native Germanic language. The term was used as opposed to Latin, the non-native language of writing and the Catholic Church. In the first text in which it is found, dating from 784, it refers to the Germanic dialects of Britain. In the Oaths of Strasbourg (842) it appeared as teudisca to refer to the Germanic (Rhenish Franconian) portion of the oath.
The word "theudisk" was first found in a text from what year?
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The answer: 784


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Bermuda has developed a proud Rugby Union community. The Bermuda Rugby Union team won the 2011 Caribbean championships, defeating Guyana in the final. They previously beat The Bahamas and Mexico to take the crown. Rugby 7's is also played, with four rounds scheduled to take place in the 2011–2012 season. The Bermuda 7's team competed in the 2011 Las Vegas 7's, defeating the Mexican team. There are four clubs on the island: (1) Police (2) Mariners (3) Teachers (4) Renegades. There is a men's and women's competition–current league champions are Police (Men) (winning the title for the first time since the 1990s) and Renegades (women's). Games are currently played at Warwick Academy. Bermuda u/19 team won the 2010 Caribbean Championships.
What did the Bermuda u/19 team win?
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The answer:
2010 Caribbean Championships