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