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.

Example Input: Category: WORLD HISTORY 
Clue: He completed vols. 2 & 3 of Karl Marx's "Das Kapital"
Example Output: friedrich engels

Example Input: Category: RIVERS 
Clue: In 1951 it was determined that this river's source was in the Sierra Parima of Venezuela
Example Output: the orinoco

Example Input: Category: THIS IS JEOPARDY! 
Clue: On the original version, this was the highest dollar value on the Double Jeopardy! board
Example Output:
$100