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