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