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: admiral, general, cadet, sergeant, ordinary
Example Output: ordinary

Example Input: fine, wispy, alright, mad, well
Example Output: wispy

Example Input: hamster, mice, iguana, fish, hunt
Example Output:
hunt