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: police punishment 
Words: flyaway, jail time, ok, arrest, fine

Answer: ok


Question: Category: type of rigidity 
Words: solid, leverage, hard, unbending, firm

Answer: leverage


Question: Category: animal 
Words: jog, fly, run, jump, pounce

Answer:
jog