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]: ok, mad, fine, bright, annoyed
[A]: bright

[Q]: just, make the grade, well, unjust, fair
[A]: make the grade

[Q]: finished for the day, close, shut, open, on top of
[A]:
on top of