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: well, milky, variety, tone, fair

Ex Output:
well


Ex Input:
Category: boats 
Words: crew, deck, rudder, suits, hull

Ex Output:
suits


Ex Input:
Category: widespread 
Words: ubiquitous, general, cadet, standard, regular

Ex Output:

cadet