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.

Ex Input:
Category: corporate 
Words: unyielding, firm, streamline, llc, private

Ex Output:
unyielding


Ex Input:
Category: moral characteristic 
Words: windy, fair, just, ok, loyal

Ex Output:
windy


Ex Input:
Category: geographical property 
Words: even, hotel, flat, lined, hill

Ex Output:

hotel