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.

Q: luke, make the grade, fair, milky, deal

A: milky
****
Q: goodies, sausage, frank, bold, entree

A: bold
****
Q: chips, joker, cards, deck, jab

A:
jab
****