What is the capital of the region which maintains the South Park Bridge ?
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/South_Park_Bridge> <http://dbpedia.org/ontology/maintainedBy> ?x . ?x <http://dbpedia.org/ontology/countySeat> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Region>}
South_Park_Bridge