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: computers 
Words: folder, text, file, ram, prepare

Answer: prepare


Question: Category: direction 
Words: remorseful, south, descending, downward, down

Answer: remorseful


Question: Category: animal 
Words: cat, kayak, fish, tiger, goat

Answer:
kayak