Since a Google product output the result, it had access to the same knowledge base as Google itself - Search, Scholar, etc. And use of copyrighted data for rese

Since a Google product output the result, it had access to the same knowledge base as Google itself - Search, Scholar, etc. And use of copyrighted data for research purposes has always been, as far as I know, considered fair use in AI training. Unfortunately, even if we wanted to, it might be impossible to attribute this success to the authors that it built upon.