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: hardware, firewall, file, format, order office supplies

Output: order office supplies


Input: Consider Input: medium, unjust, flaxen, fair, texture


Output: unjust