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: hoist, sandpiper, crane, swallow, heron

Answer: hoist


Question: fly, fish, flap, bike, glide

Answer: fish


Question: fair, variety, endure, tone, milky

Answer:
endure