:This might solve the problem. (In plain English, what it says is "if free=yes, then put this article in the category Articles with close paraphrasing of public domain sources; otherwise, put it in the category Articles with close paraphrasing.) You can see what it looks like on Elsham Priory. (One issue is that the category page currently doesn't exist...for the main close paraphrasing categories, I don't know if those are created by bot or what...)