Fiona is high. Fiona is huge. Harry is thin. Harry is little. Alan is kind. Bob is poor. Bob is rough. If someone is not big then they are poor. If someone is not bad then they are smart. If someone is kind then they are nice. If someone is nice and not dull then they are wealthy. If someone is poor and not big then they are sad. All sad people are short. If someone is thin and little then they are dull. If someone is dull and not nice then they are rough. If someone is rough then they are young. If someone is smart then they are clever. All clever people are quiet. All wealthy people are old. 
Alan is not old.