Question: Which country's national motto is "Truth prevails"?
SPARQL:
SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/property/nationalMotto> <http://dbpedia.org/resource/Truth_prevails>  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Country>}