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]: stormy, fair, just, mild, brisk
[A]: just

[Q]: sustainability, firm, amalgamated, combined, rigged
[A]: rigged

[Q]: promote, remove, heat, sack, fire
[A]:
heat