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: sustainability, firm, amalgamated, combined, rigged

Answer: rigged


Question: pale, windy, fair, flaxen, light

Answer: windy


Question: fair, level, milky, unprejudiced, size

Answer:
unprejudiced