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: police punishment 
Words: suspension, arrest, classy, custody, fine

Answer: classy


Question: Category: corporate 
Words: unyielding, concerted, firm, combined, united

Answer: unyielding


Question: Category: computers 
Words: file, format, program, schedule appointments, image

Answer:
schedule appointments