Question: What former German currency that is used in France before Euro?
Answer(s):
answer: French franc

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.0f8l9c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.0f8l9c ns:location.country.currency_formerly_used ?x .
?x ns:finance.currency.countries_formerly_used ns:m.03b79 . 
}