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:
fine, detached, decent, well, beautiful

Ex Output:
beautiful


Ex Input:
provision, frank, hot dog, goodies, harsh

Ex Output:
harsh


Ex Input:
loosen, smuggled, chocolate, wrongful, fudge

Ex Output:

chocolate