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]: galley, head, suits, deck, dock
[A]: suits


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


[Q]: course, water, early, brine, current
[A]:
early