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: BEFORE & AFTER 
Clue: The Brooklyn Dodgers'' "Little Colonel" who is "Legally Blonde"

Answer: pee wee reese witherspoon


Question: Category: AMERICAN POETRY 
Clue: In "Stopping by Woods on a Snowy Evening", he wrote that he had "promises to keep, and miles to go before I sleep"

Answer: frost


Question: Category: INVENTIONS 
Clue: John Ericsson invented this to replace the paddlewheel as the propulsion device on steamships

Answer:
the screw propeller