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:
jack, string, crying, neck, fret

Ex Output:
crying


Ex Input:
danish, fried, lollygag, pastry, fritter

Ex Output:
lollygag


Ex Input:
remorseful, south, descending, downward, down

Ex Output:

remorseful