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

Example Input: luke, make the grade, fair, milky, deal
Example Output: milky

Example Input: trustworthy, decent, fair, tone, ok
Example Output:
tone