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:
doughnut, fritter, fried, pie, seperate

Ex Output:
seperate


Ex Input:
emotional supports, shameful, downward, loveful, down

Ex Output:
downward


Ex Input:
penalty, handsome, suspension, hearing, fine

Ex Output:

handsome