Hi!
This query shows all things owned by National Trust, with English label, description, and coordinates (where available):
Click "execute" to run it. There are ways to get this result in different formats (not embedded in HTML) but I don't find this right now.
If you just want the results and not the GUI, you can ask the endpoint directly: http://tinyurl.com/ph3wn4m
(this is https://wdqs-beta.wmflabs.org/bigdata/namespace/wdq/sparql?query= and then SPARQL, URL-encoded).
If you want it in JSON, you'll need to add header: Accept:application/sparql-results+json
(not easy to do from browser, unfortunately, unless you use tool like Postman in Chrome) - otherwise you'll get the default XML. That's the endpoint that the GUI is using, proceeding then to parse the result and present them in more human-friendly form.
other one (30k still worked for me, while the WMF experimental endpoint currently times out even at 10k -- the service is running on a virtual machine that is not very powerful right now; this will change soon). The
Yes, this service has 30 seconds cap currently, so if the query takes longer, sorry :) The cap of course rill be raised significantly (and also performance would be better) once we get it to production.