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: shady activities 
Words: loosen, smuggled, chocolate, wrongful, fudge

Ex Output:
chocolate


Ex Input:
Category: secretary duty 
Words: file, software, schedule, support, order office supplies

Ex Output:
software


Ex Input:
Category: aesthetic characteristic 
Words: hearing, there, beautiful, fine, attractive

Ex Output:

hearing