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: fiber, big boned, protein, carbs, fat

A: big boned
****
Q: finger, heel, foot, ounce, elbow

A: ounce
****
Q: fawn, antling, kitten, paw, calf

A:
paw
****