In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.

Q: In the united kingdom who picks the prime minister?

A: the reigning monarch appoints
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Q: Who is known as the father of strategy management?

A: Harry Igor Ansoff
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Q: What is the first file used in the boot process of windows vista?

A:
winload.exe
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