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: luke, milky, stormy, fair, warm
Example Output: milky

Example Input: fine, detached, decent, well, beautiful
Example Output: beautiful

Example Input: service, panicked, content, jewelry, thing
Example Output:
panicked