Dave is big. Dave is high. Erin is short. Erin is little. Bob is quiet. Harry is sad. Harry is dull. If someone is not strong then they are sad. If someone is not bad then they are nice. If someone is quiet then they are smart. If someone is smart and not rough then they are wealthy. If someone is sad and not strong then they are poor. If someone is poor then they are thin. All thin people are small. If someone is short and little then they are rough. If someone is rough and not smart then they are dull. If someone is dull then they are energetic. If someone is energetic then they are young. If someone is nice then they are kind. If someone is kind then they are clever. All clever people are smart. If someone is wealthy then they are experienced. All experienced people are old.
Harry is not smart.