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