Bob is huge. Bob is strong. Charlie is thin. Charlie is small. Anne is kind. Erin is rough. Erin is sad. If someone is not big then they are rough. If someone is not bad then they are wealthy. If someone is kind then they are nice. If someone is nice and not dull then they are quiet. If someone is rough and not big then they are poor. All poor people are tiny. If someone is thin and small then they are dull. If someone is dull and not nice then they are sad. If someone is sad then they are young. If someone is wealthy then they are clever. All clever people are smart. All quiet people are old. 
Erin is smart.