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: 70, mild, fair, dishonest, clime

Ex Output:
dishonest


Ex Input:
Category: physical property 
Words: brittleness, protein, bulky, skinny, fat

Ex Output:
protein


Ex Input:
Category: temperature 
Words: optimist, scorching, chill, cool, tropical

Ex Output:

optimist