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