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: ticket, comfortable, prime, custody, fine

Answer: comfortable


Question: Category: physical activity 
Words: summer, roll, plummet, fall, exercise

Answer: summer


Question: Category: date status 
Words: detestings, up to the moment, water, current, delayed

Answer:
water