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: moral characteristic 
Words: milky, fair, ok, loyal, unprejudiced

Answer: milky


Question: Category: weather 
Words: fair, unprejudiced, raining, windy, endure

Answer: unprejudiced


Question: Category: geographical property 
Words: elevation, flat, horizontal, mountain, squashed

Answer:
squashed