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: CAPITAL 
Clue: Yokusuka & Yokohama lie on the same harbor as this capital

Answer: tokyo


Question: Category: ENGINEERING 
Clue: The motto of this 1904-1914 engineering project was "The land divided, the world united"

Answer: the panama canal


Question: Category: TO PHRASE A COIN 
Clue: Powerful brakes enable you to accomplish this idiomatic phrase

Answer:
stop on a dime