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: physical property 
Words: large, fat, capacitance, calories, ugly

Output: calories


Input: Consider Input: Category: military rank 
Words: sergeant, lieutenant, fighter, general, ordinary


Output: ordinary