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: FAMOUS COMEDY TEAMS 
Clue: Dan & Dick

Answer: rowan & martin


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

Answer: nightingale


Question: Category: FAMILIAR PHRASES 
Clue: Pool table piece you don't want to be "behind"

Answer:
the 8 ball