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