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:
goodies, wienerwurst, frank, hot dog, brash

Ex Output:
brash


Ex Input:
fudge, brownie, unlicensed, cake, pudding

Ex Output:
unlicensed


Ex Input:
prison, penalty, jail, classy, fine

Ex Output:

classy