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 consistency, answers should be in all lower cased letters.
PROBLEM: Category: WE'RE NO. 1 
Clue: Nicaragua was the first country to ratify this charter in 1945; the U.S. took another 3 weeks

SOLUTION: u.n. charter

PROBLEM: Category: I SPEAK MANY TONGUES 
Clue: A Dutch word for a ship's galley became this last car of a train

SOLUTION: a caboose

PROBLEM: Category: 20th CENTURY INNOVATION 
Clue: The modern oil-pumping unit was developed by W.C. Trout of Lufkin Industries, based in this state

SOLUTION:
texas