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.
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Question: level, knockout, deck, fight, gunwale

Answer: gunwale


Question: ghostly, fair, medium, cold, well

Answer: cold


Question: crane, heron, steam roller, hummingbird, pelican

Answer:
steam roller