instruction:
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.
question:
Category: THE AMERICAN REVOLUTION 
Clue: In 1780 & '81 this general commanded Britain's forces in the southern colonies
answer:
lord cornwallis


question:
Category: THE KOREAN WAR 
Clue: In bitter battles of 1951, Pork Chop was a hill & Heartbreak was one of these
answer:
ridge


question:
Category: DOUBLE TALK 
Clue: The official vegetable of Washington State is a sweet onion that shares its name with this valley & city
answer:

walla walla