Question: Which river inflow of the Cahora Bassa is also Batoka Gorge Hydroelectric Power Station's river ?
SPARQL:
 SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Cahora_Bassa> <http://dbpedia.org/property/inflow> ?uri. <http://dbpedia.org/resource/Batoka_Gorge_Hydroelectric_Power_Station> <http://dbpedia.org/ontology/river> ?uri}