Question: Which city was founded by  George Washington and John Forbes (British Army officer)?
SPARQL query:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE {?uri prop:founder <http://dbpedia.org/resource/George_Washington> . ?uri onto:founder <http://dbpedia.org/resource/John_Forbes_(British_Army_officer)> . ?uri rdf:type onto:City}