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:
condominium, smooshed, lined, smooth, flat

Ex Output:
condominium

Ex Input:
signal, sea, current, drink, belated

Ex Output:
belated

Ex Input:
alright, alert, fine, detached, level

Ex Output:
level