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