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: finger, heel, foot, ounce, elbow

A: ounce
****
Q: cards, deck, suits, box, fold

A: box
****
Q: punch, joker, pack, deck, hearts

A:
punch
****