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