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: emotional status 
Words: down, emotional state, loveful, ashamed, flat

Answer: flat


Question: Category: moral characteristic 
Words: variety, fine, fair, ok, balanced

Answer: variety


Question: Category: computers 
Words: motherboard, folder, hardware, file, schedule appointments

Answer:
schedule appointments