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]: confident, popular, classy, cool, chill
[EX A]: chill

[EX Q]: group, dance hall, club, outing, dagwood
[EX A]: dagwood

[EX Q]: let go, hire, fire, empower, heat
[EX A]:
heat