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: OPENING LINES OF SHAKESPEARE 
Clue: "Now is the winter of our discontent made glorious summer by this sun of York"

Answer: richard iii


Question: Category: COLORFUL LANGUAGE 
Clue: A karate kid may aspire to this high rank, kuroi-obi in Japanese

Answer: a black belt


Question: Category: 21st CENTURY MUSIC 
Clue: In September 2002 this Texan won Fox' "American Idol"

Answer:
kelly clarkson