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.

Example Input: Category: ENDS IN "I" 
Clue: Stephen S. Wise was a well-known one; Isaac Bashevis Singer was the son of one
Example Output: a rabbi

Example Input: Category: THE WHITE HOUSE 
Clue: When electric lights were installed in 1891, this pres., afraid of being shocked, wouldn't operate the switches
Example Output: benjamin harrison

Example Input: Category: PHOTOGRAPHERS 
Clue: In April 1875 the Library of Congress gained possession of his Civil War photographic plates for $25,000
Example Output:
mathew brady