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]: jail, probation, fine, classy, firstrate
[A]: classy


[Q]: geese, crouch, duck, elephant, mallet
[A]: crouch


[Q]: crane, pelican, goose, davit, swallow
[A]:
davit