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]: beautiful, classy, dull, comfortable, fine
[A]: comfortable


[Q]: lollygag, cake, misuse, goodbye, fritter
[A]: cake


[Q]: neighboring, shut, locked, close, shut down
[A]:
neighboring