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: weather 
Words: sunny, alright, deal, fair, tangle

Answer: alright


Question: Category: elements 
Words: water, heat, fire, empower, cool

Answer: empower


Question: Category: type of sandwich 
Words: french toast, clan, submarine, club, burger

Answer:
clan