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.

Input: Consider Input: Category: ALL ABOARD AMTRAK 
Clue: The Keystone Route serves NYC, Philly & this capital; Three Mile Island's nearby if you're the nuclear plant gawker type

Output: harrisburg


Input: Consider Input: Category: BUSINESS MEN 
Clue: This company founded by Berry Gordy Jr. celebrated its 40th anniversary in 1998

Output: motown records


Input: Consider Input: Category: WHAT'S THE FREQUENCY? 
Clue: The U.S. Population Census


Output: every 10 years