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