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: club, hero, lettuce, bar, toast

A: bar
****
Q: cream, wrongful, fix, fudge, smear

A: cream
****
Q: fret, sad, amp, fingerpick, string

A:
sad
****