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