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:
dally, misuse, fritter, whittle, patty

Ex Output:
patty


Ex Input:
fine, detached, decent, well, beautiful

Ex Output:
beautiful


Ex Input:
firm, llc, rigged, common, concerted

Ex Output:

rigged