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:
neat, fine, classy, penalty, high quality

Ex Output:
penalty


Ex Input:
concise, vittles, wiener, provision, frank

Ex Output:
concise


Ex Input:
fudge, chocolate cake, pudding, unwarranted, heavy

Ex Output:

unwarranted