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: nutritional value 
Words: sugar, calories, iron, fat, area

Answer: area


Question: Category: fried food 
Words: apple, whittle, dumpling, fritter, pie

Answer: whittle


Question: Category: police punishment 
Words: fine, jail, prison, comfortable, flyaway

Answer:
comfortable