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