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