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: physical property 
Words: large, fat, capacitance, calories, ugly

Answer: calories


Question: Category: shady activities 
Words: truffles, lie, falsehood, wrongful, fudge

Answer: truffles


Question: Category: chocolate food 
Words: rich, fib, pie, fudge, heavy

Answer:
fib