Please use the following interface to explore the RDF data based on the existing classes, their relations and specific filters.
Here you see a prefilled SPARQL query.
Either you execute it and see the results (should be the one of the the datasets which linked to here)
   or you use the GUI on the left to explore the RDF data
   or you change the SPARQL query by yourself.
The endpoint used is http://vm188067-l3s.hosting.uni-hannover.de:7200/repositories/Nomad