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