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: gunwale, deck, punch, sail, bow
Example Output: punch

Example Input: fritter, dunker, patty, waste, danish
Example Output: waste

Example Input: jail, neat, fine, classy, attractive
Example Output:
jail