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: employment activity 
Words: scold, water, fire, praise, replace

Answer: water


Question: Category: aesthetic characteristic 
Words: luke, fair, variety, tone, well

Answer: luke


Question: Category: moral characteristic 
Words: well, fair, dishonest, balanced, unprejudiced

Answer:
well