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]: sugars, fat, protein, skinny, iron
[A]: skinny


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


[Q]: winch, steam roller, egret, derrick, crane
[A]:
egret