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:
fair, make the grade, trustworthy, alright, just

Ex Output:
make the grade


Ex Input:
pack, hearts, deck, queen, rudder

Ex Output:
rudder


Ex Input:
tackle, goose, winch, swift, crane

Ex Output:

winch