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

Ex Input:
fighter, boring, popular, standard, general

Ex Output:
fighter


Ex Input:
dull, fine, handsome, detailed, jail time

Ex Output:
jail time


Ex Input:
paved, paved, house, level, flat

Ex Output:

paved