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: open-faced, hero, club, discothek, hamburger

Ex Output:
discothek


Ex Input:
Category: moral characteristic 
Words: loyal, fair, honorable, equitable, warm

Ex Output:
warm


Ex Input:
Category: baby animals 
Words: fawn, antling, kitten, paw, calf

Ex Output:

paw