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: moral characteristic 
Words: decent, impartial, light, fair, dishonest

Ex Output:
light


Ex Input:
Category: social gathering 
Words: meeting, cinema, club, group, submarine

Ex Output:
submarine


Ex Input:
Category: physical property 
Words: pasty, sugars, heavy, fat, angular momentum

Ex Output:

sugars