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: activity 
Words: dally, seperate, fritter, waste, fried

Ex Output:
fried


Ex Input:
Category: shady activities 
Words: falsification, wrongful, rich, fudge, unlicensed

Ex Output:
rich


Ex Input:
Category: police punishment 
Words: prime, custody, bright, fine, prison

Ex Output:

bright