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