ASK WHERE { <http://dbpedia.org/resource/Platte_River> <http://dbpedia.org/ontology/sourceRegion> <http://dbpedia.org/resource/Colorado> }
Does the platte river originate in Colorado?
ASK WHERE { resource:Platte_River property:source_region resource:Colorado }
Yes
[Yes], Colorado is the source region of Platte River.
[Yes], platte river originate in Colorado.