I'm interested as to whether the courts would consider this fact checking content as Facebook's or a third-party's. If the third party did not explicitly cause

I'm interested as to whether the courts would consider this fact checking content as Facebook's or a third-party's. If the third party did not explicitly cause the content to be put in this specific "fact check" area, did they create it for the purpose of libel? Going to an extreme: if Facebook pays Acme Fact check for some text that says "John is a bad lawyer" and facebook then posts that text on John's page, isnt Facebook liable whether or not they actually created the text? The text wasn't posted by Acme, it was posted by FBook.