SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/ontology/riverMouth> <http://dbpedia.org/resource/Gulf_of_Mexico> . ?uri <http://dbpedia.org/property/sourceLocation> <http://dbpedia.org/resource/Itasca_State_Park> . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/River>}
Which river's mouth is located in Gulf of Mexico and has source location as Itasca State Park ?
SELECT DISTINCT ?k WHERE { ?k property:river_mouth resource:Gulf_of_Mexico . ?k rdf:type ontology:River . ?k property:source_location resource:Itasca_State_Park }
Mississippi River
[Mississippi River] is the river with mouth at Gulf of Mexico and source location at Itasca State Park.
[The Mississippi] is a river that flows into the Gulf of Mexico and upstream in Itasca State Park.