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: type of sandwich 
Words: clan, lettuce, bacon, club, submarine

Ex Output:
clan


Ex Input:
Category: nutritional value 
Words: fat, protein, vitamin c, fiber, area

Ex Output:
area


Ex Input:
Category: shady activities 
Words: fib, replace, falsification, molasses, fudge

Ex Output:

molasses