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