Dave is smart. Dave is young. Erin is cold. Gary is blue. Gary is cold. Gary is furry. Gary is kind. Gary is rough. Gary is smart. Harry is blue. Harry is furry. Harry is kind. Harry is rough. Harry is smart. Harry is young. All blue, cold things are smart. If Erin is smart and Erin is young then Erin is cold. If Erin is kind and Erin is cold then Erin is young. Young, furry things are smart. All furry things are blue. Cold things are rough. If something is rough and furry then it is blue. If something is blue and smart then it is furry.
Gary is smart.