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: level, tone, fair, impartial, milky

Output: impartial


Input: Consider Input: luke, milky, stormy, fair, warm

Output: milky


Input: Consider Input: neck, tackle, derrick, crane, steam roller


Output: steam roller