instruction:
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.
question:
Category: BASEBALL & THE PRESIDENCY 
Clue: As both vice president & president, he threw out a season's 1st pitch, each time for a different Senators franchise
answer:
richard nixon


question:
Category: MUSICAL INSTRUMENTS 
Clue: Newly discovered, perhaps the oldest playable instrument is one of these, made from a crane's bone
answer:
flute


question:
Category: WASHINGTON PEOPLE 
Clue: This man in office since 1987 has a plaque in his office that reads, "The Buck Starts Here"
answer:

alan greenspan