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 Input:
Category: LANDMARKS
Clue: In the 1879 Mathew Brady photo seen here, this structure was about 150 feet tall

Ex Output:
washington monument

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

Ex Output:
united nations

Ex Input:
Category: U.S. SENATE HISTORY
Clue: Of the 15 expulsions of senators in the Senate's 215-year history, 11 took place in this year

Ex Output:
1861