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.

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

A: chaos
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Q: Category: U.S. CITIES 
Clue: On May 24, 1844 Samuel Morse was in this city demonstrating his invention

A: washington, d.c.
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Q: Category: FAMOUS PAINTINGS 
Clue: It was originally painted as the centerpiece for the Spanish Government Pavillion at the 1937 Paris World's Fair

A:
guernica
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