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