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: emotional display 
Words: fawn, antling, lust, suppressed, love

Ex Output:
antling


Ex Input:
Category: date status 
Words: delayed, course, history, belated, current

Ex Output:

course