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.

Ex Input:
Category: THE TOWER 
Clue: Lightning not only strikes the same place twice, it strikes this 110-story Chicago tower hundreds of times a year

Ex Output:
sears tower


Ex Input:
Category: OIL PAINTING 
Clue: This painting surface may be linen or cotton & is placed on a frame called a stretcher

Ex Output:
canvas


Ex Input:
Category: MATHEMATICS 
Clue: In algebra, numbers can be represented by numerals or these symbols

Ex Output:

letters