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: aesthetic characteristic 
Words: ghostly, milky, windy, fair, texture

Answer: windy


Question: Category: physical activity 
Words: swim, fall, roll, spring, drop

Answer:
spring