ASK WHERE { <http://dbpedia.org/resource/Derg> <http://dbpedia.org/ontology/anthem> <http://dbpedia.org/resource/Ethiopia> }
Was Derg the anthem of Ethopia?
ASK WHERE { resource:Derg property:anthem resource:Ethiopia }
Yes
[Yes], Ethiopia has the anthem Derg.
Yes, Ethiopia has a anthem called Derg.
[Yes], Derg is the anthem of the country.
[Yes] Derg is the national anthem.