I've tried ChatGPT on cases taken from the European Qualifying Examination for patent attorneys to see if ChatGPT can correctly identify how prior art document

I've tried ChatGPT on cases taken from the European Qualifying Examination for patent attorneys to see if ChatGPT can correctly identify how prior art document combine to attack a granted patent. (I used Paper C for this). While it spouts lots of vaguely correct patent law back at you, at no point is there even the beginning of a valid attack. The program would definitely not get a passing grade. To pass the exam, one would have to realize that elements in the prior art anticipate claim features, even if they are named differently. A lot of prior needs to be ignored to find the anticipating parts. I did not even use the full exam, just snippets, but this clearly is too difficult.