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]: deck, stern, apron, blocking, caution
[A]: stern


[Q]: unwarranted, fudge, pudding, lie, unlicensed
[A]: pudding


[Q]: pay, promote, blaze, recruit, fire
[A]:
blaze