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: unyielding, concerted, firm, combined, united

A: unyielding
****
Q: normal, commander, sargent, private, general

A: normal
****
Q: chunky, vitamin c, thin, absorption, fat

A:
vitamin c
****