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