How to convert an object with border as object to an object with border as border?

This file seems to be just an object with large border: However the border is actually an object with its own border: How can I convert it to a regular path? I’ve tried Object to Path but it doesn’t work. Here is the file: https://www.svgrepo.com/show/220721/thinking.svg My purpose is to fill the bubble with other objects … Read more