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: climbing, cow, hiking, fish, wrestle
Example Output: cow

Example Input: fair, dishonest, make the grade, unjust, well
Example Output: make the grade

Example Input: corner, canvas, hull, deck, jab
Example Output:
hull