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