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