Question: Which mainter of  Cheasty Boulevard South is also the county seat of the King County, Washingtonsu ?
SPARQL:
 SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Cheasty_Boulevard_South> <http://dbpedia.org/ontology/maintainedBy> ?uri. <http://dbpedia.org/resource/King_County,_Washington> <http://dbpedia.org/ontology/countySeat> ?uri}