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