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: blind, suits, fold, deck, canvas

Ex Output:
canvas


Ex Input:
Category: secretary duty 
Words: answer calls, file, correspondence, document, fax

Ex Output:
document


Ex Input:
Category: moral characteristic 
Words: harsh, cheese, courage, honest, frank

Ex Output:

cheese