Question: Which river originates from Cape Vincent and Kingston, Ontario?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?uri <http://dbpedia.org/property/sourceLocation> <http://dbpedia.org/resource/Cape_Vincent,_New_York> . ?uri <http://dbpedia.org/property/sourceLocation> <http://dbpedia.org/resource/Kingston,_Ontario> . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/River>}