Alan is big. Alan is strong. Erin is little. Erin is thin. Harry is quiet. Bob is poor. Bob is dull. If someone is not high then they are poor. If someone is not bad then they are nice. If someone is quiet then they are kind. If someone is kind and not sad then they are smart. If someone is poor and not high then they are rough. If someone is little and thin then they are sad. If someone is sad and not kind then they are dull. All nice people are wealthy. 
Harry is smart.