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:
goodies, weenie, blunt, wiener, frank

Ex Output:
blunt


Ex Input:
stern, frank, weenie, brash, matter of fact

Ex Output:
weenie


Ex Input:
blunt, entree, frank, wienerwurst, bun

Ex Output:

blunt