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: fine, ticket, dull, neat, detailed

Answer: ticket


Question: Category: boxing terminology 
Words: glove, level, deck, corner, board

Answer: board


Question: Category: boxing terminology 
Words: caution, hearts, canvas, deck, fight

Answer:
hearts