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: light, unprejudiced, honorable, fair, unjust

Ex Output:
light


Ex Input:
Category: police punishment 
Words: prime, fine, jail, suspension, well

Ex Output:
well


Ex Input:
Category: emotional status 
Words: suspension, fine, calm, alert, relaxed

Ex Output:

suspension