TASK DEFINITION: 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.
PROBLEM: Category: THE VATICAN ONLINE 
Clue: The bios of these on the site begin with Crispin of Viterbo, the first one created by John Paul II

SOLUTION: saints

PROBLEM: Category: CALL ME SMITTY 
Clue: Her Armistice Day rendition of "God Bless America" in 1938 introduced the song to the world

SOLUTION: kate smith

PROBLEM: Category: WORD ORIGINS 
Clue: Whether it's a problem in the eye or a waterfall, it's from the Greek for "to dash down"

SOLUTION:
cataract