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: elements 
Words: fire, earth, water, blaze, recruit

Answer: recruit


Question: Category: measurement unit 
Words: ounce, ear, inch, foot, milimeter

Answer: ear


Question: Category: fried food 
Words: danish, pie, blow, cake, fritter

Answer:
blow