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