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