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: deal, 70, equitable, fair, raining
Example Output: equitable

Example Input: alright, detailed, annoyed, fine, calm
Example Output: detailed

Example Input: hearts, deck, gunwale, board, draw
Example Output:
gunwale