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: mode of transportation 
Words: dive, fly, soar, jog, wave

Answer: dive


Question: Category: chocolate food 
Words: brownie, cake, fudge, banned, molasses

Answer: banned


Question: Category: elements 
Words: recruit, fire, burn, blaze, cool

Answer:
recruit