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: cookies, replace, fudge, banned, lie
Example Output: cookies

Example Input: alright, size, dishonest, fine, fair
Example Output: size

Example Input: deck, hearts, crew, bow, head
Example Output:
hearts