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: computers 
Words: folder, document, file, image, correspondence

Ex Output:
correspondence


Ex Input:
Category: animal 
Words: bird, flutter, jump, waggle, fly

Ex Output:
flutter


Ex Input:
Category: poker 
Words: blind, deck, pack, jab, draw

Ex Output:

jab