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