Question: Which colonel consort is Dolley Madison?
SPARQL query:
PREFIX res: <http://dbpedia.org/resource/>
PREFIX prop: <http://dbpedia.org/property/>
SELECT DISTINCT ?uri WHERE {?uri prop:rank <http://dbpedia.org/resource/Colonel_(United_States)> . ?uri prop:spouse <http://dbpedia.org/resource/Dolley_Madison> . }