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