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: finger, heel, foot, ounce, elbow

Output: ounce


Input: Consider Input: even, size, fair, level, ok

Output: ok


Input: Consider Input: detestings, current, late, main, early


Output: main