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: deck, check, joker, board, bridge

Output: bridge


Input: Consider Input: jog, cow, hike, duck, crouch

Output: cow


Input: Consider Input: hull, bow, deck, tko, dock


Output: tko