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:
level, knockout, deck, fight, gunwale

Ex Output:
gunwale


Ex Input:
chunky, heavy, fat, area, sugar

Ex Output:
sugar


Ex Input:
pester, fawn, suppressed, follow, woods

Ex Output:

woods