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:
mallet, winch, parrot, winch, crane

Ex Output:
winch


Ex Input:
emotional state, below, down, right, south

Ex Output:

emotional state