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