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: hoist, crane, excavator, winch, windlass
Example Output: hoist

Example Input: luke, milky, stormy, fair, warm
Example Output: milky

Example Input: fix, banned, fudge, pudding, mangle
Example Output:
pudding