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]: hot, classy, pretty, fine, probation
[A]: probation


[Q]: emotional supports, shameful, downward, loveful, down
[A]: downward


[Q]: fair, stormy, tone, brisk, sunny
[A]:
tone