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: fly, swim, car, beetle, grasshopper

Output: car


Input: Consider Input: ostrich, hoist, egret, crane, parrot

Output: hoist


Input: Consider Input: loveful, down, descending, ground, up


Output: loveful