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