No, at the time of writing this, no you cannot. Once a slug is used by a page, it cannot be used by other pages. It also can't be used by other posts, regardless of post types
There is a Trac ticket on WP Core that's attempting to fix this so that a slug can be reused by post type, but that would still only allow you one use of your page slug. The chances that you could do what you're trying to do are remote at best, and vanishingly small at worst.
The nearest you could get to this is by adding a /sisterhood/ endpoint via the rewrite rules interface, which would allow you to change the content of a page when the sisterhood endpoint is present. However, this endpoint is just that, an endpoint, it isn't a page with post meta and content, it's just the same page but with an endpoint ( in this case, you'd still be on the Australia page, you'd just have the option to show something different )
Rewrite rules and endpoints are not for the faint of heart, if you're interested in this, I advise you ask the question:
"How do I add a page endpoint? I'm trying to add a sisterhood endpoint to my pages, so that I can display a different template. How do I add the endpoint then load a different template?"
Make sure you link here, and you put the new question link here too