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