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: guitar part 
Words: neck, strap lock, fret, angry, notes

Ex Output:
angry


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

Ex Output:
molasses


Ex Input:
Category: shady activities 
Words: lie, heavy, fudge, replace, fib

Ex Output:

heavy