SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/ontology/currency> <http://dbpedia.org/resource/Solidus_(coin)> . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/Country>}
What countries used Solidus as currency?
SELECT DISTINCT ?s WHERE { ?s property:currency resource:Solidus_(coin) . ?s rdf:type ontology:Country }
Roman Empire, Kingdom of Vaspurakan, Odoacer  Regnum Italicum  1, Byzantine Empire, History of the Roman Empire
The countries whose currency is Solidus are [Roman Empire, Kingdom of Vaspurakan, Odoacer  Regnum Italicum  1, Byzantine Empire, History of the Roman Empire].
Countries with Solidus currency are [the Roman Empire, the Kingdom of Vaspurakan, Odoacer Regnum Italicum 1, the Byzantine Empire, the History of the Roman Empire].