Bob is strong. Bob is big. Anne is thin. Anne is little. Gary is kind. Alan is bad. Alan is sad. If someone is not high then they are bad. If someone is not dull then they are nice. If someone is kind then they are quiet. If someone is quiet and not rough then they are wealthy. If someone is bad and not high then they are poor. If someone is thin and little then they are rough. If someone is rough and not quiet then they are sad. All nice people are smart. 
Alan is not smart.