You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.
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Question: Category: OPERAS BY CONTINENT 
Clue: "Aida "

Answer: africa


Question: Category: ALL ABOUT AUTHORS 
Clue: "The Remains of the Day" author Kazuo Ishiguro was a grouse beater for this grandmother of Prince Charles

Answer: the queen mother


Question: Category: WINGS & THINGS 
Clue: Winged Victory is a headless statue of this goddess

Answer:
nike