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: direction 
Words: remorseful, south, descending, downward, down

Ex Output:
remorseful


Ex Input:
Category: date status 
Words: current, delayed, postponed, brine, late

Ex Output:
brine


Ex Input:
Category: boats 
Words: lifeline, deck, galley, bridge, fold

Ex Output:

fold