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:
toast, club, community, grilled cheese, hamburger

Ex Output:
community


Ex Input:
ok, neat, fine, attractive, beautiful

Ex Output:
ok


Ex Input:
frank, wienerwurst, honesty, provision, sausage

Ex Output:

honesty