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: fire, hire, heat, inferno, earth
Example Output: hire

Example Input: honorable, tangle, clime, make the grade, fair
Example Output: honorable

Example Input: fair, loyal, alright, honorable, windy
Example Output:
windy