Question: What is the river on which the Kariba Dam and Batoka Gorge Hydroelectirc power station exist?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { res:Kariba_Dam onto:river ?uri. res:Batoka_Gorge_Hydroelectric_Power_Station onto:river ?uri . }