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: happy, fine, mad, level, decent

Output: level


Input: Consider Input: answer calls, image, organize, file, correspondence

Output: image


Input: Consider Input: out of service, gated, locked, close, nearest


Output: nearest