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:
alright, detached, fine, acceptable, bright

Ex Output:
bright


Ex Input:
miserable, ground, up, opposite of up, down

Ex Output:
miserable


Ex Input:
blunt, frank, wiener, honest, bold

Ex Output:

wiener