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:
pack, hearts, deck, queen, rudder

Ex Output:
rudder


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

Ex Output:
flyaway


Ex Input:
panel, glass, translucent fabric, dish, plastic

Ex Output:

dish