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: "N" JOY 
Clue: A songbird, or the last name of nursing pioneer Florence

Answer: nightingale


Question: Category: ANAGRAMMED U.S. CITIES 
Clue: Late Set, Washington

Answer: seattle


Question: Category: ROCK ARTISTS 
Clue: In addition to his own bands, this guitarist has played with The Yardbirds, Cream, & Derek & The Dominos

Answer:
eric clapton