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