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:
provision, fortitude, frank, brash, honest

Ex Output:
provision


Ex Input:
penalty, handsome, suspension, hearing, fine

Ex Output:
handsome


Ex Input:
fix, chocolate, pudding, fudge, cake

Ex Output:

fix