Question: Which president was served by someone whose lieutenant is Lewis Stuyvesant Chanler?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
PREFIX onto: <http://dbpedia.org/ontology/>
SELECT DISTINCT ?uri WHERE { ?x prop:lieutenant res:Lewis_Stuyvesant_Chanler . ?x onto:president ?uri  . }