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