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: animal 
Words: dangle, fly, run, car, pounce

Answer: car


Question: Category: physical property 
Words: brittleness, protein, bulky, skinny, fat

Answer: protein


Question: Category: weather 
Words: windy, fine, clime, fair, deal

Answer:
fine