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:
down, kind, opposite of up, lower, ground

Ex Output:
kind


Ex Input:
deck, corner, draw, tko, glove

Ex Output:
draw


Ex Input:
bored, nervous, fret, fingerpick, frustrated

Ex Output:

fingerpick