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