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