Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.

Ex Input:
Category: weather 
Words: windy, stormy, fair, tone, tangle

Ex Output:
tone


Ex Input:
Category: chocolate food 
Words: brownies, falsification, fudge, rich, heavy

Ex Output:
falsification


Ex Input:
Category: fried food 
Words: pie, dally, cake, fritter, patty

Ex Output:

dally