Question: River which flows into the eugene mahoney state park pass through which states?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x prop:mouthLocation res:Eugene_T._Mahoney_State_Park . ?x onto:state ?uri . }