Alan is big. Alan is high. Anne is short. Anne is small. Bob is kind. Charlie is sad. Charlie is rough. If someone is not strong then they are sad. If someone is not dull then they are quiet. If someone is kind then they are smart. If someone is smart and not bad then they are nice. If someone is sad and not strong then they are poor. All poor people are thin. If someone is short and small then they are bad. If someone is bad and not smart then they are rough. If someone is rough then they are young. If someone is quiet then they are wealthy. All wealthy people are clever. All nice people are experienced. 
Alan is not thin.