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.
--------
Question: Category: weather 
Words: sunny, alright, deal, fair, tangle

Answer: alright


Question: Category: chocolate food 
Words: fudge, cream, replace, cookies, brownies

Answer: replace


Question: Category: animals 
Words: duck, mallet, sheep, sprint, swan

Answer:
sprint