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:
heat, hire, burn, air, fire

Ex Output:
hire


Ex Input:
dally, misuse, fritter, whittle, patty

Ex Output:
patty


Ex Input:
flyaway, prime, high quality, fine, jail time

Ex Output:

high quality