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: poker 
Words: fold, blind, deck, draw, box

Ex Output:
box


Ex Input:
Category: boats 
Words: lifeline, stern, fold, deck, rudder

Ex Output:
fold


Ex Input:
Category: outdoor sport activity 
Words: fish, stingray, trap, climbing, row

Ex Output:

stingray