These are the data used in the test corresponding to the application. But you can use any pair of classification/segmentation raster, as long as they have the same footprint.
ok, thanks. But I reiterate: it is very important for the user to be able to run the examples as written in the cookbook (what use would have for you a real cook book with recipes that require impossible ingredients?). This is the 1st step for the user to check if that tool is of interest to address his/her problem.