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: impartial, fair, equitable, level, ok
Example Output: level

Example Input: clime, level, cool, tone, fair
Example Output: clime

Example Input: bright, fine, jail time, arrest, money
Example Output:
bright