Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.

Ex Input:
handsome, dull, flyaway, attractive, fine

Ex Output:
flyaway


Ex Input:
variety, endure, level, fair, milky

Ex Output:
endure


Ex Input:
trustworthy, milky, fair, equitable, decent

Ex Output:

milky