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: prison, mad, arrest, fine, wispy

Output: mad


Input: Consider Input: deal, fair, endure, windy, ghostly

Output: ghostly


Input: Consider Input: follow, woo, cub, swoon, fawn


Output: cub