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: cool, unruffled, funny, chill, ethical

Answer: chill


Question: icy, hot, cool, refreshing, relaxed

Answer: relaxed


Question: detached, mad, prime, decent, fine

Answer:
prime