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: lower, backward, down, falling, shameful

Output: shameful


Input: Consider Input: dally, waste away, fried, whittle, fritter

Output: fried


Input: Consider Input: deck, galley, check, joker, queen


Output: galley