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:
cow, fish, dog, sea turtle, hunt

Ex Output:
hunt


Ex Input:
dull, fine, handsome, detailed, jail time

Ex Output:
jail time


Ex Input:
down, kind, ashamed, sliding, unhappy

Ex Output:

sliding