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: close, nearest, touching, on top of, barred

Answer: barred


Question: well, clime, milky, fair, size

Answer: clime


Question: firm, leverage, stiff, united, llc

Answer:
stiff