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: animal 
Words: swim, dive, fly, car, bee

Ex Output:
car


Ex Input:
Category: nutritional value 
Words: sugar, calories, iron, fat, area

Ex Output:
area


Ex Input:
Category: moral characteristic 
Words: frank, sausage, integrity, harsh, bold

Ex Output:

sausage