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: size, equitable, fair, alright, fine
Example Output: size

Example Input: stingray, fish, camp, swim, hunt
Example Output: stingray

Example Input: prison, alright, decent, content, fine
Example Output:
prison