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:
alright, size, dishonest, fine, fair

Ex Output:
size


Ex Input:
valley, house, cabin, squashed, flat

Ex Output:
valley


Ex Input:
comfortable, happy, exquisite, fine, content

Ex Output:

exquisite