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