Alan is strong. Alan is huge. Fiona is thin. Fiona is small. Dave is wealthy. Charlie is dull. Charlie is bad. If someone is not high then they are dull. If someone is not sad then they are kind. If someone is wealthy then they are quiet. If someone is quiet and not rough then they are nice. If someone is dull and not high then they are poor. All poor people are short. If someone is thin and small then they are rough. If someone is rough and not quiet then they are bad. If someone is bad then they are young. If someone is kind then they are smart. All smart people are clever. All nice people are old. 
Dave is not old.