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: jail, fine, bright, arrest, flyaway

Ex Output:
bright


Ex Input:
Category: moral characteristic 
Words: unprejudiced, warm, fair, ok, balanced

Ex Output:
warm


Ex Input:
Category: weather 
Words: tone, endure, raining, fair, windy

Ex Output:

tone