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: geographical property 
Words: paved, even, hill, level, flat

Output: even


Input: Consider Input: Category: aesthetic characteristic 
Words: mild, fair, texture, even, milky

Output: mild


Input: Consider Input: Category: moral characteristic 
Words: honorable, medium, trustworthy, fair, balanced


Output: medium