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