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]: clothing, content, service, substance, ecstatic
[EX A]: ecstatic

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

[EX Q]: fair, ghostly, make the grade, raining, stormy
[EX A]:
ghostly