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]: ok, wispy, jail, prime, fine
[A]: ok


[Q]: late, up to the moment, current, course, belated
[A]: course


[Q]: shut, close, on top of, out of service, open
[A]:
on top of