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: social gathering 
Words: club, bar, dance hall, discothek, roll

Output: roll


Input: Consider Input: Category: shady activities 
Words: fib, replace, falsification, molasses, fudge

Output: molasses


Input: Consider Input: Category: moral characteristic 
Words: goodies, precise, blunt, brash, frank


Output: goodies