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: boats 
Words: deck, call, galley, bridge, stern

Answer: call


Question: Category: activity 
Words: blow, waste away, sweet roll, whittle, fritter

Answer: sweet roll


Question: Category: moral characteristic 
Words: impartial, loyal, trustworthy, stormy, fair

Answer:
stormy