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.

Example Input: Category: moral characteristic 
Words: stern, frank, brash, loyalty, goodies
Example Output: goodies

Example Input: Category: corporate 
Words: unyielding, firm, streamline, llc, private
Example Output: unyielding

Example Input: Category: moral characteristic 
Words: well, decent, flaxen, loyal, fair
Example Output:
flaxen