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: folder, hardware, file, firewall, support

Output: support


Input: Consider Input: fawn, love, calf, flatter, identity

Output: calf


Input: Consider Input: drop, fall, leaves, bend, exercise


Output: leaves