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: impartial, fair, honorable, level, fine

Output: level


Input: Consider Input: bike, flap, fly, walk, wave

Output: walk


Input: Consider Input: hike, squat, crouch, dog, duck


Output: dog