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, knockout, bow, sail, rudder

Output: knockout


Input: Consider Input: valley, house, cabin, squashed, flat

Output: valley


Input: Consider Input: fritter, misuse, apple, cake, fried


Output: misuse