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.

Q: Category: BORN 
Clue: Born on Oct. 31, 1887 in the Zhejiang Province, he'd Taiwan-on in 1949

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

A: a black belt
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Q: Category: MEXICAN GEOGRAPHY 
Clue: In population, this city on the Rio Grande is the largest Mexican city on the border with the U.S.

A:
juárez
****