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.

[EX Q]: string, frustrated, chord, output cord, fret
[EX A]: frustrated

[EX Q]: output cord, fret, notes, frustrated, chord
[EX A]: frustrated

[EX Q]: errands, file, answer, prepare, image
[EX A]:
image