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: fight, chips, deck, canvas, box
Example Output: chips

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

Example Input: cool, raining, cold, windy, fair
Example Output:
cool