Question: Which key person of the Clinton Foundation is also the president of Edward J. Perkins ?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
 SELECT DISTINCT ?uri WHERE { res:Edward_J._Perkins onto:president ?uri. res:Clinton_Foundation prop:keyPeople ?uri}