Question: Does the mississippi orignate in the clearwater county, minnesota?
SPARQL query: ASK WHERE { <http://dbpedia.org/resource/Mississippi_River> <http://dbpedia.org/ontology/sourceRegion> <http://dbpedia.org/resource/Clearwater_County,_Minnesota> }
Answer: [Yes], Clearwater County, Minnesota is the source region of Mississippi river.