Lyrics Beauty And The Beast

In Beauty and the Beast, what story or book is Belle referring to?

In Belle’s song, Belle sings the lyrics “Here is where she meets prince charming, but she won’t discover that its him, till chapter 3”.
It sounds like she’s referring to Sleeping Beauty.

Anyone have any ideas?

Artwork doesn;t support it, but it is just a vague romance novel. I mean, a lot of them are like that, like Jane Eyre