Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.
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Question: Category: food 
Words: honesty, meat, hot dog, sausage, frank

Answer: honesty


Question: Category: direction 
Words: below, backward, melancholy, down, ground

Answer: melancholy


Question: Category: mode of transportation 
Words: walk, fly, train, pounce, wave

Answer:
pounce