Charlie is high. Charlie is big. Erin is thin. Erin is short. Dave is nice. Alan is rough. Alan is sad. If someone is not strong then they are rough. If someone is not dull then they are quiet. If someone is nice then they are kind. If someone is kind and not poor then they are wealthy. If someone is rough and not strong then they are bad. If someone is thin and short then they are poor. If someone is poor and not kind then they are sad. All quiet people are smart. 
Alan is smart.