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: chocolate food 
Words: brownies, falsification, fudge, rich, heavy

Ex Output:
falsification


Ex Input:
Category: boats 
Words: deck, gunwale, queen, lifeline, bridge

Ex Output:
queen


Ex Input:
Category: nutritional value 
Words: sugars, chunky, fat, calcium, fiber

Ex Output:

chunky