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.
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Question: Category: THE NATIONAL MUSEUM OF HEALTH & MEDICINE 
Clue: Among lesser-known body parts at the museum, see the leg Gen. Daniel Sickles lost at this July 1863 battle

Answer: gettysburg


Question: Category: LITERATURE 
Clue: Lloyd Brown, once an inmate of this city's Alleghany County jail, based his novel "Iron City" on life there

Answer: pittsburgh


Question: Category: GREEK LETTERS 
Clue: Zeta is actually the 6th letter in the Greek alphabet; the last one is this

Answer:
omega