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 consistency, answers should be in all lower cased letters.

[EX Q]: Category: RANKS & TITLES 
Clue: Inheriting property & title from her deceased husband made Tz'u-hsi of China this kind of Empress
[EX A]: dowager

[EX Q]: Category: LET'S GET IT "ON"! 
Clue: A person of low social status, or a day laborer
[EX A]: peon

[EX Q]: Category: IN THE MIDDLE WITH "U" 
Clue: This type of government is mentioned in the Pledge of Allegiance
[EX A]:
a republic