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: aesthetic characteristic 
Words: prison, fine, there, handsome, high quality

Answer: prison


Question: Category: animal 
Words: shark, dolphin, fish, hunting, cat

Answer: hunting


Question: Category: body part 
Words: mile, arm, leg, foot, eye

Answer:
mile