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: THE YOU-NIVERSE 
Clue: Containing 33 vertebrae, it's also known as the vertebral column
answer:
the spine


question:
Category: WHAT THE "H" 
Clue: To celebrate the bicentennial of Andrew Jackson's birth, Lyndon Johnson visited this mansion in March 1967
answer:
the hermitage


question:
Category: __E__E__E 
Clue: A form of address for some royalty, it means calm & unruffled
answer:

serene