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]: unlicensed, chocolate, heavy, fudge, chocolate cake
[A]: unlicensed


[Q]: heron, davit, egret, derrick, crane
[A]: davit


[Q]: nervous, file, item, content, books
[A]:
nervous