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:
ok, mad, fine, bright, annoyed

Ex Output:
bright


Ex Input:
tiger, horse, fish, hunting, dog

Ex Output:

hunting