What is the base currency of the country which operates the Marion Dufresne?
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Marion_Dufresne_(1995)> <http://dbpedia.org/ontology/operator> ?x . ?x <http://dbpedia.org/ontology/currency> ?uri  . }
Marion_Dufresne_(1995)