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: big boned, vitamin c, fiber, sugar, fat

Output: big boned


Input: Consider Input: 70, endure, decent, cold, fair


Output: decent