Harry is huge. Harry is big. Anne is small. Anne is thin. Alan is wealthy. Fiona is poor. Fiona is bad. If someone is not high then they are poor. If someone is not sad then they are nice. If someone is wealthy then they are kind. If someone is kind and not dull then they are smart. If someone is poor and not high then they are rough. If someone is small and thin then they are dull. If someone is dull and not kind then they are bad. All nice people are quiet. 
Alan is not smart.