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: warm, optimist, hot, relaxing, cool

Output: optimist


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

Output: level


Input: Consider Input: detached, acceptable, mad, exquisite, fine


Output: exquisite