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:
clime, level, cool, tone, fair

Ex Output:
clime


Ex Input:
jog, waggle, pounce, fly, bats

Ex Output:
jog


Ex Input:
heavy, fix, fudge, rich, molasses

Ex Output:

fix