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: early, water, delayed, history, current
Example Output: water

Example Input: large, fat, capacitance, calories, ugly
Example Output:
calories