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: amalgamated, firm, unyielding, shareholders, ceo

Answer: unyielding


Question: hunting, goat, camp, trap, fish

Answer: goat


Question: merchandise, happy, thing, content, service

Answer:
happy