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: comfortable, ok, decent, fine, suspension

Output: suspension


Input: Consider Input: replace, fire, retire, air, remove

Output: air


Input: Consider Input: winch, crane, hoist, windlass, upraise


Output: winch