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: protein, chunky, big boned, fat, capacitance

Answer: protein


Question: goat, iguana, raft, hamster, fish

Answer: raft


Question: fiber, salt, fat, ugly, sugar

Answer:
ugly