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

Ex Output:
software


Ex Input:
Category: aesthetic characteristic 
Words: fair, medium, size, light, loyal

Ex Output:
loyal


Ex Input:
Category: chocolate food 
Words: loosen, cake, chocolate cake, cream, fudge

Ex Output:

loosen