SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/ontology/mouthPlace> <http://dbpedia.org/resource/Essex> . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/River>}
Name the rivers who originate from Essex?
SELECT DISTINCT ?v WHERE { ?v rdf:type ontology:River . ?v property:mouth_place resource:Essex }
River Thames, River Stour, Suffolk
The rivers whose mouth is in Essex are [River Thames, River Stour, Suffolk].
The rivers that estuary in Essex are [Thames, River Stour, Suffolk].