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:
crew, joker, deck, chips, pack

Ex Output:
crew


Ex Input:
neat, fine, classy, penalty, high quality

Ex Output:
penalty


Ex Input:
loyal, fair, honorable, equitable, warm

Ex Output:

warm