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: late, up to the moment, current, course, belated
Example Output: course

Example Input: deck, gunwale, queen, lifeline, bridge
Example Output:
queen