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: aesthetic characteristic 
Words: variety, fair, alright, pale, flaxen

Ex Output:
alright


Ex Input:
Category: location (proximity) 
Words: closer, close, adjacent, gated, right there

Ex Output:
gated


Ex Input:
Category: personal characteristic 
Words: unflappalbe, cool, calm, funny, refreshing

Ex Output:

refreshing