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: unprejudiced, texture, fair, impartial, well

Answer: texture


Question: Category: employment activity 
Words: sack, inferno, promote, empower, fire

Answer: inferno


Question: Category: construction 
Words: steam roller, swallow, dump truck, windlass, crane

Answer:
swallow