Question: Which currency is utilized, in the country, where Hungarian Sign Language is used?
Answer(s):
answer: Hungarian forint

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ?c)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
?c ns:location.country.languages_spoken ns:m.08p454 . 
?c ns:location.country.currency_used ?x .
}