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:
social, love, fawn, follow, kid

Ex Output:
kid


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

Ex Output:
sugar


Ex Input:
early, data sets, brine, timely, current

Ex Output:

brine