It's widely believed that this is something of an urban myth. According to this myth, prison governors supposedly use third-grade reading scores in local schools to plan how many beds they will need to provide in their facilities. The idea is that those who fall into a life of crime never progress in their reading abilities beyond third grade.
Explanation:
6+6+6+6+7+7+6+6+6+6+6+6+6+6+6+6+6+6+6+6+6+66+6+6+6+y
Let me preface by saying “I am not sure” but my thoughts lead me towards the exposition.
Reasoning: exposition is meaning or purpose, this seems to be providing the fair woman with a foundation of her character’s meaning and role in the story.