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: fair, even, milky, ghostly, luke

Output: luke


Input: Consider Input: even, light, dishonest, variety, fair

Output: dishonest


Input: Consider Input: content, activity, fearful, file, thing


Output: fearful