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: boxing terminology 
Words: deck, gunwale, level, tko, jab

Ex Output:
gunwale


Ex Input:
Category: construction 
Words: windlass, crane, dump truck, pelican, digger

Ex Output:
pelican


Ex Input:
Category: computers 
Words: file, folder, support, image, download

Ex Output:

support