Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.

Input: Consider Input: Category: moral characteristic 
Words: milky, fair, ok, loyal, unprejudiced

Output: milky


Input: Consider Input: Category: widespread 
Words: regular, colonel, typical, ordinary, general

Output: colonel


Input: Consider Input: Category: mode of transportation 
Words: flutter, car, bird, glide, fly


Output: bird