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