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]: dump truck, hoist, crane, ostrich, goose
[A]: dump truck


[Q]: dog, push, duck, squat, jog
[A]: dog


[Q]: knockout, apron, fight, deck, sail
[A]:
sail