I set up a local instance of wikibase following this guide.
Now at http://localhost:8282 I can access a SPARQL interface which look very much like https://query.wikidata.org/ – good.
However, there seems to be no "preinstalled" data in my local instance, which is very reasonable.
To actually experiment how to add, remove and change data, I would like to copy a tiny fragment of the actual wikidata to my own instance. A particular task would be to get the cats-example to return at least some matching records.
How can I do this?