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: ocean 
Words: current, early, water, brine, tide

Answer: early


Question: Category: aesthetic characteristic 
Words: cool, trustworthy, milky, fair, well

Answer: trustworthy


Question: Category: emotional status 
Words: content, fine, comfortable, alright, arrest

Answer:
arrest