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]: level, knockout, deck, fight, gunwale
[A]: gunwale


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


[Q]: format, answer, document, file, text
[A]:
answer