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:
trustworthy, milky, fair, equitable, decent

Ex Output:
milky


Ex Input:
bow, draw, galley, deck, crew

Ex Output:
draw


Ex Input:
fawn, hatchling, kid, lust, calf

Ex Output:

lust