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:
stormy, fair, just, mild, brisk

Ex Output:
just


Ex Input:
lollygag, cake, misuse, goodbye, fritter

Ex Output:
cake


Ex Input:
waggle, fly, swim, run, jog

Ex Output:

jog