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: duplex, studio, cabin, horizontal, flat

Output: horizontal


Input: Consider Input: sugars, obese, big boned, fat, pasty

Output: sugars


Input: Consider Input: windlass, winch, digger, derrick, crane


Output: winch