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


[Q]: blunt, sausage, hot dog, frank, wienerwurst
[A]: blunt


[Q]: fat, large, ugly, protein, skinny
[A]:
protein