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:
hoagie, submarine, place, open-faced, club

Ex Output:
place


Ex Input:
unyielding, firm, llc, alignment, private

Ex Output:
unyielding


Ex Input:
relaxing, cool, calm, level, persistent

Ex Output:

relaxing