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: variety, endure, level, fair, milky
Example Output: endure

Example Input: ticket, fine, pretty, jail, suspension
Example Output: pretty

Example Input: postponed, sea, drink, course, current
Example Output:
postponed