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: fret, worried, chord, notes, headstock

A: worried
****
Q: deck, suits, lifeline, draw, fold

A: lifeline
****
Q: fix, rich, unwarranted, falsification, fudge

A:
rich
****