The classification of the AHN4 is the same as that of the AHN3. This is stated in the specifications conditions (technical specifications).
During the processing of the AHN4, it turned out that the high-voltage pylons and cables could easily be found by the processing software. These have therefore ended up in a separate class (classification code 14), although this was not required. As a result, this class has also not been checked for the AHN4.
For the AHN5, it was decided to include this in the technical specifications.
The specifications are freely available, we are currently working on the AHN website to include this information as much as possible (in any case, to include the specifications conditions as a download). @Hugoledoux, if you want to receive them now let me know.