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