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: nutritional value 
Words: sugar, calories, iron, fat, area

Ex Output:
area


Ex Input:
Category: police punishment 
Words: comfortable, money, fine, prison, jail time

Ex Output:
comfortable


Ex Input:
Category: store status 
Words: gated, right there, not open, barred, close

Ex Output:

right there