Question: List the state of the universities whose nation is United States ?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x onto:country <http://dbpedia.org/resource/United_States> . ?x onto:state ?uri  . ?x rdf:type onto:University}