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: chocolate food 
Words: brownie, cake, fudge, banned, molasses

Ex Output:
banned


Ex Input:
Category: social gathering 
Words: discothek, club, group, picnic, hamburger

Ex Output:

hamburger