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