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