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 consistency, answers should be in all lower cased letters.
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Question: Category: WINE 
Clue: The Douro Valley in this country is an important port producer

Answer: portugal


Question: Category: OPERA 
Clue: "Esmeralda", an 1840s opera, is based on a work by this "Miserable" author

Answer: victor hugo


Question: Category: CELEBRITIES' MIDDLE NAMES 
Clue: Keenen ____ Wayans

Answer:
ivory