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