Question: Where are Solidus and Aureus used?
SPARQL query: SELECT DISTINCT ?uri WHERE { ?uri <http://dbpedia.org/ontology/currency> <http://dbpedia.org/resource/Solidus_(coin)> . ?uri <http://dbpedia.org/ontology/currency> <http://dbpedia.org/resource/Aureus> . }
Answer: Solidus and Aureus currencies were used in [Roman Empire, History of the Roman Empire].