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: hotel, level, flat, even, lined

Output: lined


Input: Consider Input: fritter, sweet roll, whittle, seperate, divide

Output: sweet roll


Input: Consider Input: ounce, foot, kilometer, milimeter, heel


Output: heel