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.

Input: Consider Input: Category: SCIENCE WORD ORIGINS 
Clue: Coined by the chemist J.B. van Helmont, the word gas comes from this Greek word meaning "unformed mass"

Output: chaos


Input: Consider Input: Category: AMERICAN ARTISTS 
Clue: From 1919 to 1924, this artist taught art in the public schools of Cedar Rapids, Iowa

Output: grant wood


Input: Consider Input: Category: U.S. PRESIDENTS 
Clue: Of the 1st 7 presidents, only these 2 were not re-elected


Output: john adams & john quincy adams