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.

[EX Q]: Category: MUSIC 
Clue: Webster's defines this word as "a chord of three tones consisting of a root with its third and fifth"
[EX A]: a triad

[EX Q]: Category: STATES' SOUTHWEST CORNERS 
Clue: This state's is just north of the Columbia River
[EX A]: washington

[EX Q]: Category: COUNTRY MATTERS 
Clue: On April 25, 1898 the U.S. declared war on this country
[EX A]:
spain