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 consistency, answers should be in all lower cased letters.
PROBLEM: Category: NUN SENSE 
Clue: This 6th century Irish nun is also known as St. Bride, though she refused to marry

SOLUTION: st. bridget

PROBLEM: Category: KEANU, ASHTON OR EINSTEIN 
Clue: Born in Beirut, Lebanon

SOLUTION: keanu

PROBLEM: Category: NOTABLE WOMEN 
Clue: Her 1951 book "La Razon de mi Vida" ("The Purpose of my Life") was once mandatory reading in Argentine schools

SOLUTION:
eva peron