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