SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/property/sourceRegion> <http://dbpedia.org/resource/Arequipa_Region> . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/River>}
Name a river starting from arequipa region?
SELECT DISTINCT ?i WHERE { ?i property:source_region resource:Arequipa_Region . ?i rdf:type ontology:River }
Amazon River
[Amazon River] is the river whose source region is Arequipa Region.
[The Amazon River] is a river whose headwaters are in the area of Arequipa.