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: type of sandwich 
Words: french toast, community, club, burger, dagwood

Ex Output:
community


Ex Input:
Category: aesthetic characteristic 
Words: honorable, fair, variety, milky, even

Ex Output:
honorable


Ex Input:
Category: store status 
Words: shut, close, on top of, out of service, open

Ex Output:

on top of