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.

Example Input: Category: THE HENRY WHO... 
Clue: ...was set adrift with his son & 7 crewmen in 1611
Example Output: hudson

Example Input: Category: ROCKS & MINERALS 
Clue: A mixture containing antimony is sprayed on canvas to render it this
Example Output: fireproof

Example Input: Category: "AFTER" CLASS 
Clue: To increase a jet plane's thrust, turn on these that feed fuel into the hot exhaust gases
Example Output:
afterburners