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: impartial, fair, equitable, level, ok

Answer: level


Question: fish, stingray, climbing, trap, hiking

Answer: stingray


Question: hike, kayak, swim, dolphin, fish

Answer:
dolphin