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:
fawn, social, cub, kid, colt

Ex Output:
social


Ex Input:
ubiquitous, captain, typical, general, boring

Ex Output:
captain


Ex Input:
deck, head, bow, draw, sail

Ex Output:

draw