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.

Ex Input:
Category: BUSINESS & INDUSTRY 
Clue: This package delivery firm was founded in 1907 as the American Messenger Company

Ex Output:
ups


Ex Input:
Category: NONFICTION 
Clue: This 1988 bestseller was subtitled "From the Big Bang to Black Holes"

Ex Output:
a brief history of time


Ex Input:
Category: BELOVED FILMS 
Clue: A fugitive Cary Grant blends in with the crowd at Grand Central in this Hitchcock thriller

Ex Output:

north by northwest