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: police punishment 
Words: hearing, firstrate, alert, custody, fine

Ex Output:
alert


Ex Input:
Category: computers 
Words: folder, text, file, ram, prepare

Ex Output:
prepare


Ex Input:
Category: poker 
Words: joker, deck, crew, cards, queen

Ex Output:

crew