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: weather 
Words: brisk, fair, sunny, cold, balanced

Ex Output:
balanced


Ex Input:
Category: moral characteristic 
Words: decent, impartial, light, fair, dishonest

Ex Output:
light


Ex Input:
Category: police punishment 
Words: prison, fine, calm, money, suspension

Ex Output:

calm