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: dally, waste away, fried, whittle, fritter

A: fried
****
Q: fudge, mangle, falsehood, falsification, cake

A: cake
****
Q: unyielding, concerted, firm, combined, united

A:
unyielding
****