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, unprejudiced, fair, endure, clime

Ex Output:
unprejudiced


Ex Input:
Category: social gathering 
Words: grilled cheese, place, club, dance hall, meeting

Ex Output:
grilled cheese


Ex Input:
Category: weather 
Words: brisk, fair, fine, sunny, tangle

Ex Output:

fine