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]: neat, beautiful, dull, fine, firstrate
[A]: firstrate


[Q]: kind, down, sad, backward, emotionalities
[A]: backward


[Q]: glass, metal, panel, frame, bowl
[A]:
bowl