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: level, fair, milky, sunny, well

Ex Output:
sunny


Ex Input:
Category: secretary duty 
Words: order office supplies, sort mail, file, program, type

Ex Output:
program


Ex Input:
Category: date status 
Words: do tests, blue, current, up to the moment, detests

Ex Output:

blue