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: U.S. CITIES 
Clue: Its largest airport is named for a World War II hero; its second largest, for a World War II battle

SOLUTION: chicago

PROBLEM: Category: THE 20th CENTURY 
Clue: In the 1940s Franklin Roosevelt coined this term in reference to all the countries allied against the Axis powers

SOLUTION: united nations

PROBLEM: Category: RELIGIOUS TERMS 
Clue: John Paul II has eliminated this position whose duty was to present arguments against sainthood

SOLUTION:
devil\'s advocate