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: aesthetic characteristic 
Words: fair, medium, size, light, loyal

Output: loyal


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

Output: colonel


Input: Consider Input: Category: geographical property 
Words: flat, paved, level, paved, horizontal


Output: paved