Bob is blue. Bob is cold. Bob is green. Bob is not quiet. Bob is not round. Bob is smart. Gary is blue. Gary is not cold. Gary is round. Harry is blue. Harry is green. Harry is round. Quiet things are not smart. If something is cold and not blue then it is round. All blue, furry things are not green. If something is quiet and smart then it is not green. If something is cold and not smart then it is green. Green, round things are quiet.
Harry is smart.