Here is a question about this article: Certain staples of classical music are often used commercially (either in advertising or in movie soundtracks). In television commercials, several passages have become cliched, particularly the opening of Richard Strauss' Also sprach Zarathustra (made famous in the film 2001: A Space Odyssey) and the opening section "O Fortuna" of Carl Orff's Carmina Burana, often used in the horror genre; other examples include the Dies Irae from the Verdi Requiem, Edvard Grieg's In the Hall of the Mountain King from Peer Gynt, the opening bars of Beethoven's Symphony No. 5, Wagner's Ride of the Valkyries from Die Walkure, Rimsky-Korsakov's Flight of the Bumblebee, and excerpts of Aaron Copland's Rodeo.
What is the answer to this question: How are staples of classical music often used?
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So... commercially

Here is a question about this article: Congo is located in the central-western part of sub-Saharan Africa, along the Equator, lying between latitudes 4N and 5S, and longitudes 11 and 19E. To the south and east of it is the Democratic Republic of Congo. It is also bounded by Gabon to the west, Cameroon and the Central African Republic to the north, and Cabinda (Angola) to the southwest. It has a short coast on the Atlantic Ocean.
What is the answer to this question: Between which two lines of latitude is the Congo located?
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So... 4N and 5S

Here is a question about this article: After Hurricane Katrina in 2005, Beyonce and Rowland founded the Survivor Foundation to provide transitional housing for victims in the Houston area, to which Beyonce contributed an initial $250,000. The foundation has since expanded to work with other charities in the city, and also provided relief following Hurricane Ike three years later.
What is the answer to this question: What national disaster caused Beyonce to create the Survivor Foundation?
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So...
Hurricane Katrina