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: sea turtle, whale, dog, fish, hunting
Example Output: hunting

Example Input: tone, just, equitable, fair, unprejudiced
Example Output: tone

Example Input: level, exquisite, fine, alright, handsome
Example Output:
alright