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: consumer product 
Words: content, panicked, file, substance, jewelry

Ex Output:
panicked


Ex Input:
Category: boxing terminology 
Words: corner, fold, deck, knockout, level

Ex Output:
fold


Ex Input:
Category: aesthetic characteristic 
Words: hearing, fine, classy, dull, handsome

Ex Output:

hearing