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: police punishment 
Words: suspension, arrest, classy, custody, fine

Ex Output:
classy


Ex Input:
Category: moral characteristic 
Words: light, unprejudiced, honorable, fair, unjust

Ex Output:
light


Ex Input:
Category: aesthetic characteristic 
Words: honorable, even, fair, light, level

Ex Output:

honorable