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:
fine, firstrate, ticket, money, handsome

Ex Output:
handsome


Ex Input:
pick, fret, string, fingerpick, sad

Ex Output:
sad


Ex Input:
just, deal, fair, tangle, clime

Ex Output:

just