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: INVENTORS 
Clue: Mainz, Germany celebrates the life of this inventor in an annual festival called Johannisnacht

SOLUTION: johannes gutenberg

PROBLEM: Category: NOVELS 
Clue: Amazon.com said this novel, set in Iowa, was "the romantic classic of the 1990s"

SOLUTION: the bridges of madison county

PROBLEM: Category: GEOGRAPHIC ADJECTIVES 
Clue: Of the nations with adjectives in their common names, only this Western Hemisphere one bears the name of a religious order

SOLUTION:
the dominican republic