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.

Example Input: cold, deal, make the grade, unprejudiced, fair
Example Output: unprejudiced

Example Input: colonel, ordinary, standard, ubiquitous, general
Example Output: colonel

Example Input: ring, deck, blind, cards, joker
Example Output:
ring