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: aesthetic characteristic 
Words: prison, fine, there, handsome, high quality

Answer: prison


Question: Category: emotional status 
Words: sad, remorseful, down, ashamed, sliding

Answer: sliding


Question: Category: aesthetic characteristic 
Words: ghostly, just, tone, light, fair

Answer:
just