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.

Input: Consider Input: fret, nervous, board, fingerpick, jack

Output: nervous


Input: Consider Input: deck, dock, galley, joker, hull

Output: joker


Input: Consider Input: sargent, typical, plain, popular, general


Output: sargent