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: ostrich, hoist, egret, crane, parrot

Output: hoist


Input: Consider Input: comfortable, ok, decent, fine, suspension

Output: suspension


Input: Consider Input: fret, notes, emotional upsets, output cord, truss rod


Output: emotional upsets