Question: Who was the 16th president of the United States?
SPARQL query:
PREFIX onto: <http://dbpedia.org/ontology/> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> SELECT DISTINCT ?uri WHERE { ?uri onto:office 'President of the United States' . ?uri onto:orderInOffice '16th' . }