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: blocking, fold, deck, check, board

A: blocking
****
Q: output cord, fret, notes, frustrated, chord

A: frustrated
****
Q: pie, misuse, cake, fritter, skin

A:
misuse
****