Erin is strong. Erin is big. Dave is thin. Dave is little. Gary is quiet. Alan is dull. Alan is poor. If someone is not high then they are dull. If someone is not rough then they are wealthy. If someone is quiet then they are kind. If someone is kind and not sad then they are smart. If someone is dull and not high then they are bad. If someone is thin and little then they are sad. If someone is sad and not kind then they are poor. All wealthy people are nice. 
Alan is not nice.