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