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:
pork, weenie, goodies, honest, frank

Ex Output:
honest


Ex Input:
tide, current, flow, detests, whirlpool

Ex Output:
detests


Ex Input:
heavy, fat, heavy, protein, salt

Ex Output:

heavy