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: date status 
Words: current, delayed, postponed, brine, late

Answer: brine


Question: Category: mode of transportation 
Words: bus, jump, soar, car, fly

Answer:
jump