Question: In which country was GM was firt aired which is also the mouth country of Upper Neretva?
SPARQL query:
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
 SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Upper_Neretva> onto:mouthCountry ?uri. <http://dbpedia.org/resource/Gümüş_(TV_series)> prop:firstAired ?uri}