TASK DEFINITION: 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.
PROBLEM: Category: STATES' SOUTHWEST CORNERS 
Clue: This state's is just north of the Columbia River

SOLUTION: washington

PROBLEM: Category: ROLL OVER, BEETHOVEN 
Clue: Symphony Beethoven "composed to celebrate the memory of a great man"

SOLUTION: eroica

PROBLEM: Category: ISLANDS 
Clue: This third-largest island in the world is shared by Brunei, Malaysia & Indonesia

SOLUTION:
borneo