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 simplicity, answers should be in all lower cased letters.
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Question: Category: 4-LETTER WORDS 
Clue: 4-letter Italian term for the boss of a crime syndicate

Answer: a capo


Question: Category: ALL ABOUT RIVERS 
Clue: You may be waiting for the Robert E. Lee on a natural one of these raised river banks created by flood waters

Answer: levee


Question: Category: MOTHER JONES SAID 
Clue: "On their sides the workers had only" this document: "the other side had bayonets"

Answer:
the constitution