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