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: streamline, sustainability, private, firm, stiff

Answer: stiff


Question: blunt, sausage, hot dog, frank, wienerwurst

Answer: blunt


Question: dishonest, fair, unjust, alright, cold

Answer:
cold