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: fawn, love, calf, flatter, identity
Example Output: calf

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

Example Input: punch, bow, glove, deck, ring
Example Output:
bow