input question: Answer this question: who is E from entourage????
output answer: Eric "E."

Answer this question: what came first army or air force?
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Answer: The AAF was a component of the United States Army , which in 1942 was divided functionally by executive order into three autonomous forces: the Army Ground Forces , the Services of Supply (which in 1943 became the Army Service Forces ), and the AAF.

Q: Answer this question: when does the electoral college votes?
A: The United States Electoral College is the institution that officially elects the President and Vice President of the United States every four years.

Question: Answer this question: what is steam by valve corporation?
Answer: Steam is a digital distribution , digital rights management , multiplayer and communications platform developed by Valve Corporation .

[Q]: Answer this question: what is prefix phone number?
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[A]: A telephone prefix is the first set of digits of a telephone number; in the North American Numbering Plan countries (country code 1), it is the first three digits of a seven-digit phone number.

Problem: Given the question: Answer this question: what composer used sound mass?
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The answer is:
Other examples include European "textural" compositions of the fifties and sixties such as Krzysztof Penderecki 's Threnody to the Victims of Hiroshima (1959) and Gyorgy Ligeti 's works featuring micropolyphony in works like Atmospheres (1961) and his Requiem (1963-65).