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:
belated, jetstream, detestings, current, delayed

Ex Output:
jetstream


Ex Input:
gunwale, deck, punch, sail, bow

Ex Output:
punch


Ex Input:
bulky, ugly, fat, big, area

Ex Output:

big