Dave is blue. Dave is kind. Dave is nice. Dave is round. Dave is smart. Harry is blue. Harry is kind. Harry is nice. Harry is rough. Harry is round. Harry is smart. Harry is young. If someone is kind then they are round. All rough people are kind. Round people are rough. If someone is rough then they are nice. Round people are blue. If someone is round and smart then they are kind. All blue people are young. Round, rough people are blue.
Harry is not smart.