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:
even, light, dishonest, variety, fair

Ex Output:
dishonest


Ex Input:
brownie, fudge, wrongful, mangle, loosen

Ex Output:
brownie


Ex Input:
stern, pack, board, deck, hearts

Ex Output:

stern