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: motherboard, folder, hardware, file, schedule appointments
Example Output: schedule appointments

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

Example Input: fair, impartial, tone, well, balanced
Example Output:
tone