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:
egret, mallet, tackle, davit, crane

Ex Output:
tackle


Ex Input:
hoist, crane, excavator, winch, windlass

Ex Output:
hoist


Ex Input:
unlicensed, brownie, replace, fudge, wrongful

Ex Output:

brownie