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:
honorable, tangle, clime, make the grade, fair

Ex Output:
honorable

Ex Input:
ashamed, down, emotional upsets, disgusted, ground

Ex Output:
ground

Ex Input:
deck, jab, caution, fight, pack

Ex Output:
pack