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: accomodation 
Words: apartment, lined, house, condominium, flat

Ex Output:
lined


Ex Input:
Category: direction 
Words: remorseful, south, descending, downward, down

Ex Output:
remorseful


Ex Input:
Category: animal 
Words: goat, mice, fish, bat, hunting

Ex Output:

hunting