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]: ecstatic, content, disappointed, sad, service
[A]: service


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


[Q]: chunky, heavy, fat, area, sugar
[A]:
sugar