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: location (proximity) 
Words: beside, close, steady, nearest, nearer

Ex Output:
steady


Ex Input:
Category: emotional display 
Words: buck, identity, culture, fawn, pester

Ex Output:
buck


Ex Input:
Category: weather 
Words: brisk, mild, unjust, fair, stormy

Ex Output:

unjust