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: hiking, stingray, shark, fish, tiger

Output: hiking


Input: Consider Input: impartial, fair, honorable, level, fine

Output: level


Input: Consider Input: glass, cup, knifer, coating, colander


Output: coating