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.
--------
Question: Category: FLY ME TO THE MOONS 
Clue: Saturn's largest moon was fittingly named this, also a term for a Greek mythological giant god

Answer: titan


Question: Category: FIREFIGHTING 
Clue: Early NYC firemen were alerted with rattles--so you might have a 3-rattle fire where today we'd have this equivalent

Answer: a 3-alarm fire


Question: Category: PRISON LIFE 
Clue: Convict priest John Geoghan was kept in this, abbreviated PC, but was killed by another inmate in PC

Answer:
protective custody