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: aesthetic characteristic 
Words: fair, size, medium, dishonest, level

Ex Output:
dishonest


Ex Input:
Category: secretary duty 
Words: answer calls, file, correspondence, document, fax

Ex Output:
document


Ex Input:
Category: aesthetic characteristic 
Words: variety, medium, fair, tone, honorable

Ex Output:

honorable