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