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:
hoist, sandpiper, crane, swallow, heron

Ex Output:
hoist


Ex Input:
provision, fortitude, frank, brash, honest

Ex Output:
provision


Ex Input:
even, fair, dishonest, cool, milky

Ex Output:

dishonest