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