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: banned, replace, smear, chocolate cake, fudge

Ex Output:
chocolate cake


Ex Input:
Category: moral characteristic 
Words: wiener, frank, integrity, loyalty, stern

Ex Output:
wiener


Ex Input:
Category: employment activity 
Words: burn, replace, empower, retire, fire

Ex Output:

burn