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.
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Question: Category: WE'RE NO. 1
Clue: Nicaragua was the first country to ratify this charter in 1945; the U.S. took another 3 weeks

Answer: u.n. charter

Question: Category: EPITAPHS
Clue: "Truth and history. 21 men. The boy bandit king -- he died as he had lived"

Answer: billy the kid

Question: Category: THE STAR-SPANGLED BANNER LYRICS
Clue: They're the type of elevated fortifications o'er which "we watched"

Answer:
ramparts