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:
ubiquitous, captain, typical, general, boring

Ex Output:
captain


Ex Input:
corner, ring, crew, deck, apron

Ex Output:
crew


Ex Input:
fair, unprejudiced, loyal, medium, honorable

Ex Output:

medium